gotraining

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Published: Jul 17, 2017 License: Apache-2.0 Imports: 10 Imported by: 0

README

Go Training Build Status

Review our different courses and material

To learn about Corporate training events, options and special pricing please contact:

William Kennedy
ArdanLabs (www.ardanlabs.com)
bill@ardanlabs.com

Our Experience

We have taught Go to thousands of developers all around the world since 2014. There is no other company that has been doing it longer and our material has proven to help jump-start developers 6 to 12 months ahead of their knowledge of Go. We know what knowledge developers need in order to be productive and efficient when writing software in Go.

Our classes are perfect for intermediate-level developers who have at least a few months to years of experience writing code in Go. Our classes provide a very deep knowledge of the programming langauge with a big push on language mechanics, design philosophies and guidelines. We focus on teaching how to write code with a priority on consistency, integrity, readability and simplicity. We cover a lot about “if performance matters” with a focus on mechanical sympathy, data oriented design, decoupling and writing/debugging production software.

Look at our current schedule

Our Teachers

William Kennedy (@goinggodotnet)

William Kennedy is a managing partner at Ardan Studio in Miami, Florida, a mobile, web, and systems development company. He is also a co-author of the book Go in Action, the author of the blog GoingGo.Net, and a founding member of GoBridge which is working to increase Go adoption through diversity.

Video Training
Ultimate Go Live Lessons

Blog
Going Go

Writing
Running MongoDB Queries Concurrently With Go
Go In Action

Articles
IT World Canada

Video
GopherCon Singapore (2017) - Escape Analysis
Capital Go 2017 - Concurrency Design
GopherCon India (2017) - Package Oriented Design
GopherCon India (2015) - Go In Action
GolangUK (2016) - Dependency Management
GothamGo (2015) - Error Handling in Go
GopherCon (2014) - Building an analytics engine

Hack Potsdam (2017) - Tech Talk with William Kennedy
Chicago Meetup (2016) - An Evening
Vancouver Meetup (2016) - Go Talk & Ask Me Anything With William Kennedy
Vancouver Meetup (2015) - Compiler Optimizations in Go
Bangalore Meetup (2015) - OOP in Go
GoSF Meetup - The Nature of Constants in Go
London Meetup - Mechanical Sympathy
Vancouver Meetup - Decoupling From Change

Podcasts
Your Tech Interviews are Scaring Away Brilliant People
The 4 Cornerstones of Writing Software
Bill Kennedy on Mechanical Sympathy
Discussing Imposter Syndrome

Daniel Whitenack (@dwhitena)

Daniel Whitenack is a PhD trained data scientist/engineer with industry experience developing data science applications for large and small companies, including predictive models, dashboards, recommendation engines, and more. Daniel has spoken at conferences around the world (Gopherfest, GopherCon, and more), maintains the Go kernel for Jupyter, and is actively helping to organize contributions to various open source data science projects.

Writing
Data Dan
Elephantine Analytics

Articles
O'Reilly Data Blog

Video
GopherCon 2016 - Go for Data Science

Podcasts
Go Time - Episode 4

Jacob Walker (@jcbwlkr)

Jacob is a software developer, consultant, community organizer, and has really nice hair. Like ridiculously nice hair. He started his career creating web applications in PHP, Ruby, and Node.js. When he discovered Go he dove in deep and hasn't regretted it for a minute. Coming from the thriving metropolis of Wichita, Kansas he organizes the devICT community whose mission is to "Educate, Empower, and Connect software developers in the Wichita area". Jacob also works closely with Women Who Code Wichita, Open Wichita, MakeICT, and Kansas Linux Fest. When he isn't working or organizing Jacob is spending time with his wife and three kids, staying up too late with video games, cooking, or playing Dungeons and Dragons.

Writing
Jacob Walker's blog

Video
An Informal Intro to Docker
Women Who Code Intro To Go Workshop
Getting Started with Go
Vim and Emacs Chat: Part 1: Vim
Regular Expressions 101
Implementing OOP (Ruby and PHP)
Templating In PHP With Twig

John Gosset (@jgosset_)

John is a consultant and software developer based in Montreal, Canada. He works on server software and embedded systems, and has worked with organizations large and small in both the public and private sectors - from the Canadian government and FinTech companies to small carpet manufacturers in Saint-Jean-sur-Richelieu, Quebec. He is also a contractor for RedHat, and volunteers with the Software Carpentry Foundation to help research scientists learn programming fundamentals. He believes coding is a useful skill for anyone to have, and is passionate about helping make it more accessible to everybody.

Video
GopherCon Brazil - Go Scratch That Itch

Ernesto Jimenez (@ernesto_jimenez)

Ernesto is a combination of engineer and product manager who has worked on different kinds of products, from webapps to APIs and games in both startups and big corporations. He sees technology as a tool to build great products that solve real problems for customers. Based in London, Ernesto spends spare time contributing to open source projects, building small hacks and rock climbing. He is originally from Spain and studied Computer Science in Spain and Finland.

Writing
Reducing boilerplate with go generate
Writing good unit tests for SOLID Go

Our Pricing

We are working hard to maintain pricing that can fit your budget.

Ultimate Go
3 Days (21 hours) - $30,000 for up to 15 students including T&E
2 Days (14 hours) - $25,000 for up to 15 students including T&E
Classes that exceed 15 students are charged an extra $1,000 each per additional student.

Ultimate Data Science
3 Days (21 hours) - $30,000 for up to 15 students including T&E
2 Days (14 hours) - $25,000 for up to 15 students including T&E
Classes that exceed 15 students are charged an extra $1,000 each per additional student.

Ultimate Web
2 Days (14 hours) - $25,000 for up to 15 students including T&E
Classes that exceed 15 students are charged an extra $1,000 each per additional student.

Current Schedule

If you are interested in holding an event in your area please let me know. We will work with you and your organization to help make it happen.

2017

    Type         Type     Venue             Location               Month      Trainer            Url
	=====================================================================================================================================================================================
	Corporate    Go       GNS Science       Wellington, NZ         January    Bill Kennedy
	Corporate    Go       Pearson           San Francisco, CA      March      Bill Kennedy 		
	Corporate    Go       Intel             Portland, OR           March      Bill Kennedy 		
	Corporate    Go       Apcera            SF, CA                 April      Bill Kennedy 		
	Corporate    Go       Capital One       SF, CA                 May        Bill Kennedy
	Corporate    Go       Sky Betting       Leeds, UK              May        Bill Kennedy 		
	Corporate    Go       Intel             Chandler, AZ           June       Bill Kennedy
	Corporate    Go       Finxact           Jaxksonville, FL       June       Bill Kennedy
	Corporate    Go       Apcera            SF, CA                 June       Bill Kennedy 		
	Corporate    Go       Comcast           Reston, VA             July       Bill Kennedy
	Corporate    Go       Capital One       Washington, D.C.       August     Bill Kennedy 		
	Corporate    Go       Teradata          San Diego              August     Bill Kennedy 		

	Public       Go       Fire Tavern       Atlanta, GA            March      Bill Kennedy       https://www.eventbrite.com/e/ultimate-go-atlanta-march-2017-tickets-31036843033
	Public       Go       1up Events        San Francisco, CA      April      Bill Kennedy       https://www.eventbrite.com/e/ultimate-go-san-francisco-april-2017-tickets-31485558152
	Public       Go       Skillsmatter      London, England        May        Ernesto Jimenez    https://skillsmatter.com/courses/563-ardanlabs-ultimate-go-workshop
	Public       Go       The Lab           Miami, FL              May        Bill Kennedy       https://www.eventbrite.com/e/ultimate-go-miami-may-2017-tickets-32131447023
	Public       Go       bol.com           Utrecht, Netherlands   June       Bill Kennedy       https://www.eventbrite.com/e/ultimate-go-netherlands-june-2017-tickets-32131027769
	Public       Data     Fieldlens         NYC, NY                June       Daniel Whitenack   https://www.eventbrite.com/e/ultimate-data-new-york-june-2017-tickets-32130974610
	
	GoBridge     Go       Framingham        Framingham, MA         February   Bill Kennedy       https://www.bridgetroll.org/events/329
	WWG          Web      Buzzfeed          San Francisco, CA      March      Jacob Walker       https://www.meetup.com/Women-Who-Go/events/237660344
	WWG          Data     TuneIn            San Francisco, CA      April      Daniel Whitenack   https://www.meetup.com/Women-Who-Go/events/237660548
	GoBridge     Go       Framingham        Framingham, MA         April      Bill Kennedy       https://www.bridgetroll.org/events/343
	GoBridge     Go       SUNY Potsdam      Potsdam, NY            May        Bill Kennedy       https://www.eventbrite.com/e/ultimate-go-with-william-kennedy-tickets-33174514867
	WWG          Web      Packet HQ         NYC, NY                May        Jacob Walker       https://www.meetup.com/NYC-Women-Who-Go/events/239306971/
	WWG          Go       TBD               London England         August     Bill Kennedy       https://www.meetup.com/Women-Who-Go-London/events/241708328/
	
	Conference   Adv Go   Golab             Florance, IT           January    Bill Kennedy       http://golab.io
	Conference   Adv Go   GopherCon India   Pune, India            February   Bill Kennedy       http://www.gophercon.in/go-workshop		
	Conference   Data     GopherCon India   Pune, India            February   Daniel Whitenack	
	Dev Fest     Adv Go   SUNY Potsdam      Potsdam, NY            March      Bill Kennedy  
	Conference   Adv Go   Capital Golang    Washington, D.C.       April      Bill Kennedy       http://capitalgolang.com
	Conference   Go       Singapore         Singapore              May        Bill Kennedy       http://gophercon.sg/workshop
	Conference   Adv Go   GopherCon         Denver, CO             July       Bill Kennedy
	Conference   Data     GopherCon         Denver, CO             July       Daniel Whitenack  				
	Conference   Adv Go   GolangUK          London, England        August     Bill Kennedy       https://www.golanguk.com
	Conference   Web      GolangUK          London, England        August     Jacob Walker       https://www.golanguk.com
	Conference   Talk     Code::Dive        Wroclaw, Poland        November   Bill Kennedy       http://codedive.pl/

More About Go

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software. Although it borrows ideas from existing languages, it has a unique and simple nature that make Go programs different in character from programs written in other languages. It balances the capabilities of a low-level systems language with some high-level features you see in modern languages today. This creates a programming environment that allows you to be incredibly productive, performant and fully in control; in Go, you can write less code and do so much more.

Go is the fusion of performance and productivity wrapped in a language that software developers can learn, use and understand. Go is not C, yet we have many of the benefits of C with the benefits of higher level programming languages.

The eigenvector of "Why we moved from language X to language Y" - Erik Bernhardsson
Learn More - Go Team
Simplicity is Complicated - Rob Pike
Getting Started In Go - Aarti Parikh

Minimal Qualified Student

The material has been designed to be taught in a classroom environment. The code is well commented but missing some of the contextual concepts and ideas that will be covered in class. Students with the following minimal background will get the most out of the class.

  • Studied CS in school or has a minimum of two years of experience programming full time professionally.
  • Familiar with structural and object oriented programming styles.
  • Has worked with arrays, lists, queues and stacks.
  • Understands processes, threads and synchronization at a high level.
  • Operating Systems
    • Has worked with a command shell.
    • Knows how to maneuver around the file system.
    • Understands what environment variables are.

Important Reading

Please check out this page of important reading. You will find articles and videos around mechanical sympathy, data-oriented design, Go runtime and optimizations and articles about the history of computing.

Before You Come To Class

The following is a set of tasks that can be done prior to showing up for class. We will also do this in class if anyone has not completed it. However, the more attendees that complete this ahead of time the more time we have to cover additional training material.

Joining the Go Slack Community

We use a slack channel to share links, code, and examples during the training. This is free. This is also the same slack community you will use after training to ask for help and interact with may Go experts around the world in the community.

  1. Using the following link, fill out your name and email address: https://gophersinvite.herokuapp.com/
  2. Check your email, and follow the link to the slack application.
  3. Join the training channel by clicking on this link: https://gophers.slack.com/messages/training/
  4. Click the “Join Channel” button at the bottom of the screen.

Installing Go

Local Installation

I do not recommend using homebrew or apt-get.

https://www.goinggo.net/2016/05/installing-go-and-your-workspace.html

Using Docker

Installing Go may not be needed if you choose to use Docker. With running a gotraining container, you can download the training material at any location on your disk without having to set $GOPATH. And you can still access (e.g. for editing) the training materials locally.

git clone https://github.com/ardanlabs/gotraining.git
cd gotraining

NOTE: This assumes you have Git installed. If you don’t, you can find the installation instructions here: https://git-scm.com/

To build and run docker container to start your training right away, see here.

Editors

Visual Studio Code
https://code.visualstudio.com/Updates
https://github.com/microsoft/vscode-go

Sublime
http://www.sublimetext.com/
https://github.com/DisposaBoy/GoSublime
http://www.wolfe.id.au/2015/03/05/using-sublime-text-for-go-development/

VIM
http://www.vim.org/download.php
http://farazdagi.com/blog/2015/vim-as-golang-ide/

Atom
https://atom.io/
https://github.com/joefitzgerald/go-plus

LiteIDE
http://sourceforge.net/projects/liteide/files/

Emacs
https://github.com/creack/dotfiles

For a full list of editors, see the wiki: https://github.com/golang/go/wiki/IDEsAndTextEditorPlugins

Installing the Training Material

While many of the examples can be done using the online playground (http://play.golang.org), some may find it easier to complete them with their local editor. To do so, you will want to load the training material locally to your machine. From a command prompt, issue the following commands:

mkdir -p $GOPATH/src/github.com/ardanlabs && cd $_
git clone https://github.com/ardanlabs/gotraining.git

NOTE: This assumes you have Git installed. If you don’t, you can find the installation instructions here: https://git-scm.com/

Starter Material

http://golang.org/
https://tour.golang.org/welcome/1
http://www.goinggo.net/

Go Get The Training Material

go get github.com/ardanlabs/gotraining

Twitter

Jessie Frazelle (@frazelledazzell)
"@goinggodotnet you were amazing!!! So enthusiastic!!! Thanks for doing this for everyone!"

Kelsey Hightower (‏@kelseyhightower)
"Day 1 of the [Ultimate] Go workshop was outstanding! Big shoutout to @intel, @golangbridge, and @goinggodotnet for bringing this to Portland."

Katrina Owen (@kytrinyx)
"OH: "You thought you knew Go..." (You do Go? You want to do Go?) You should take this workshop. Seriously.) "

Ian Molee (@ianfoo) "If you're at @GopherCon, get yourself to a session with @goinggodotnet. Superb! Pretty sure his pic appears with the definition of "dynamo.""

Matt Oswalt (@Mierdin)
"Should be mentioned that though I am no expert, I have been using Go for about a year - and this meetup is kicking my ass."

Testimonials

Paul Yeoh
_"Today’s workshop was just mind blowing! You kept us all on the edge all day long - it was the most exhilarating all day workshop I have attended, period. The content was inspiring, moving - caused me to think deeply and gave me a lot of meat to chew on about what it is we are really doing as programmers, what an awesome day!

And most of all, I just got such a kick out of the energy which you were putting out - larger than life, it felt like you were turned up to 200%. I really took a lot from it at many levels. Thank you!!"_

Ana-Maria Lazar, Software Engineer at Sainsbury's
"Intensive crash course in Go that literally takes you to a whole new level. Not only Bill provides lots of examples and exercises to familiarize yourself faster with the language but there is also a lot of information that can be applied to other languages as well. Perfect combination!"

Susan Dady, Software Engineer - GE Digital
"Rarely will you come across a course as worthwhile as this one. I learned many things relevant and useful in my daily work and William's energy kept me engaged. I came back to work excited to get coding in Go."

Richard Stanley, Software Engineer - GE Digital
"Not only does Bill deeply understands the technical details of Go, he also can explain them in an effective, enthusiastic manner that helped me retain somewhat dry material. His passion for the language and its capabilities are obvious through out his training."

Shalab Goel, Ph.D.
"It was a pleasure taking this course — learning lot of "dry" stuff in such animated and enthusiastic environment. The exercises were spot on for building what you called as "memory muscle. I have good amount of background in conventional multithreaded and distributed environments, but I have not put that knowledge to use more recently; so it was good refresher from that point of view as well. From Yuck to completely Wow-ed is how I will like to describe my respect for Go within three days. I knew nothing about GO before the course."

Geoff Clitheroe (@gclitheroe)
"Your training is awesome! Myself and three colleagues recently caught variations of the training at GopherCon and OSCON. We all thought the Bootcamp was the best thing at any of these conferences (and I went to both). Awesome work to Bill for presenting and anyone involved in developing the training. I really liked the structure, emphasis on deeper understanding, me doing a small number of examples to emphasize this, and general content. Night and day to other training which is to often just watching someone else live code. Great work."

ACL Services (@ACLServices)
"I'd just like to thank you again for just a phenomenal training session. The feedback from everyone was overwhelmingly positive. You probably could tell first hand that there were skeptics at first, but you've turned many into golang converts and we are really excited in growing golang adoption internally."

Joshua Shuster (@naysaier)
"I would consider Ardan Studio's 3 day course to be invaluable. Bill and his staff, being some of the foremost authorities in the Go language, were able to make many of the complex go topics understandable. Covering everything from memory management, all the way up to building concurrency programs and web API's. It has given me the knowledge to write idiomatic Go, and make the best use of its features. I would highly their courses to anyone new to Go, or to anyone wanting to widen their existing knowledge."

Neeru Dwivedi
"I attended the one day workshop by Bill Kennedy from Ardan Labs. I was in for a surprise as before the workshop I was concerned whether I would understand concepts and whether I would be able to follow along. Bill has this wonderful way of explaining concepts and his knowledge on the concepts is so good that, I didn't feel that I was learning something new & complicated. The Go Workshop got me started on the Go language. This workshop is perfect for beginners and anyone who wants to learn more about Go. I highly recommend this."

Todd Rafferty (@webrat)
"I highly recommend William Kennedy / Ardan Lab for Go Training. William is extremely passionate about the Go language and his energy feeds into his training. Very professional, very informative. My favorite section of his training, if I had to pick, was the segment on MultiWriters. I highly recommend a 3 day course, over a 2 day course. Even after the classes were over, William was always responsive with additional questions via various social media channels."

Georgi Knox (@GeorgiCodes)
"The Intro to Go Workshop enabled me to come into class with very little knowledge of Go and leave having a firm grasp of the key concepts of the language. Each topic was followed up with hands-on coding problems which helped to solidify what I was learning. My teacher Bill was not only approachable, but very excited about the language and his enthusiasm was contagious. I enjoyed that we talked about some of the lower level implementation details of Go which was something that I had found lacking from some books on the language. Overall I would highly recommend this workshop to anyone looking to learn Go quickly and effectively."

Past Events

Look at how busy we have been training thousands of developers in Go over the past four years.

    2017 : 35 Events and counting  
	2016 : 37 Events  
	2015 : 33 Events  
	2014 :  3 Events  

Running Docker

Install Docker Toolbox
https://www.docker.com/products/docker-toolbox

Build Docker container

# current path is the source root where Dockerfile exists
docker build -t ardanlabs-gotraining .

Start Docker container

docker run -it -v "$PWD":/go/src/github.com/ardanlabs/gotraining ardanlabs-gotraining
# or start container with downloaded gotraining in the image
docker run -it ardanlabs-gotraining

Remove gotraining container and image

docker rm -f $(docker ps -a | grep ardanlabs-gotraining | awk '{print $1}')
docker rmi -f $(docker images -a | grep ardanlabs-gotraining | awk '{print $1}')

All material is licensed under the Apache License Version 2.0, January 2004.

Documentation

The Go Gopher

There is no documentation for this package.

Source Files

Directories

Path Synopsis
starter-kits
http/cmd/apid
This program provides a sample web service that implements a RESTFul CRUD API against a MongoDB database.
This program provides a sample web service that implements a RESTFul CRUD API against a MongoDB database.
tools
mpl
Package main provides a CLI tool to automatically update Go Playground links within a training markdown file
Package main provides a CLI tool to automatically update Go Playground links within a training markdown file
topics
data/caching/example1
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./example1 Sample program to show how to cache data from an API.
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./example1 Sample program to show how to cache data from an API.
data/caching/example2
Sample program to save data from an API in an embedded k/v store.
Sample program to save data from an API in an embedded k/v store.
data/caching/exercises/exercise1
Sample program to show how to cache data from an API, and then use that data in analyzing a dataset.
Sample program to show how to cache data from an API, and then use that data in analyzing a dataset.
data/caching/exercises/template1
Sample program to show how to cache data from an API, and then use that data in analyzing a dataset.
Sample program to show how to cache data from an API, and then use that data in analyzing a dataset.
data/classification_kNN/example1
Sample program to profile our data set.
Sample program to profile our data set.
data/classification_kNN/example2
Sample program to train and validate a kNN model with cross validation.
Sample program to train and validate a kNN model with cross validation.
data/classification_kNN/exercises/exercise1
Program for finding an optimal k value for a k nearest neighbors model.
Program for finding an optimal k value for a k nearest neighbors model.
data/classification_kNN/exercises/template1
Program for finding an optimal k value for a k nearest neighbors model.
Program for finding an optimal k value for a k nearest neighbors model.
data/classification_trees/example1
Sample program to train and validate a decision tree model with cross validation.
Sample program to train and validate a decision tree model with cross validation.
data/classification_trees/example2
Sample program to determine an optimal value of the decision tree pruning parameter.
Sample program to determine an optimal value of the decision tree pruning parameter.
data/classification_trees/exercises/exercise1
Sample program to visualize the accuracy of models with various decision tree pruning parameters.
Sample program to visualize the accuracy of models with various decision tree pruning parameters.
data/classification_trees/exercises/template1
Sample program to visualize the accuracy of models with various decision tree pruning parameters.
Sample program to visualize the accuracy of models with various decision tree pruning parameters.
data/containers/example1
Sample program to train a regression model with a single independent variable.
Sample program to train a regression model with a single independent variable.
data/containers/example2
Sample program to predict based on a persisted regression model.
Sample program to predict based on a persisted regression model.
data/containers/exercises/exercise1
Sample program to train a regression model with multiple independent variables.
Sample program to train a regression model with multiple independent variables.
data/containers/exercises/template1
Sample program to train a regression model with multiple independent variables.
Sample program to train a regression model with multiple independent variables.
data/csv_cleaning/example1
Sample program to read in records from an example CSV file to a dataframe.
Sample program to read in records from an example CSV file to a dataframe.
data/csv_cleaning/example2
Sample program to create a dataframe and subsequently filter and subset the dataframe.
Sample program to create a dataframe and subsequently filter and subset the dataframe.
data/csv_cleaning/example3
Sample program to register of CSV file as an in-memory SQL database and execute SQL queries on the CSV.
Sample program to register of CSV file as an in-memory SQL database and execute SQL queries on the CSV.
data/csv_cleaning/example4
Sample program to register of CSV file as an in-memory SQL database and execute SQL queries on the CSV.
Sample program to register of CSV file as an in-memory SQL database and execute SQL queries on the CSV.
data/csv_cleaning/exercises/exercise1
Sample program to read in a CSV, create three filtered datasets, and save those datasets to three separate files.
Sample program to read in a CSV, create three filtered datasets, and save those datasets to three separate files.
data/csv_cleaning/exercises/exercise2
Sample program to register of CSV file as an in-memory SQL database, sum float columns, and output a process CSV.
Sample program to register of CSV file as an in-memory SQL database, sum float columns, and output a process CSV.
data/csv_cleaning/exercises/template1
Sample program to read in a CSV, create three filtered datasets, and save those datasets to three separate files.
Sample program to read in a CSV, create three filtered datasets, and save those datasets to three separate files.
data/csv_cleaning/exercises/template2
Sample program to register of CSV file as an in-memory SQL database, sum float columns, and output a process CSV.
Sample program to register of CSV file as an in-memory SQL database, sum float columns, and output a process CSV.
data/csv_io/example1
Sample program to read in records from an example CSV file.
Sample program to read in records from an example CSV file.
data/csv_io/example2
Sample program to read in records from an example CSV file, and catch an unexpected extra field in the data.
Sample program to read in records from an example CSV file, and catch an unexpected extra field in the data.
data/csv_io/example3
Sample program to read in records from an example CSV file, and catch an unexpected types in a single column.
Sample program to read in records from an example CSV file, and catch an unexpected types in a single column.
data/csv_io/example4
Sample program to save records to a CSV file.
Sample program to save records to a CSV file.
data/csv_io/exercises/exercise1
Sample program to read in records from an example CSV file, and catch an unexpected types in any of the columns.
Sample program to read in records from an example CSV file, and catch an unexpected types in any of the columns.
data/csv_io/exercises/exercise2
Sample program to read in records from an example CSV file, catch an unexpected types in any of the columns, and output processed data to a different CSV file.
Sample program to read in records from an example CSV file, catch an unexpected types in any of the columns, and output processed data to a different CSV file.
data/csv_io/exercises/template1
Sample program to read in records from an example CSV file, and catch an unexpected types in any of the columns.
Sample program to read in records from an example CSV file, and catch an unexpected types in any of the columns.
data/csv_io/exercises/template2
Sample program to read in records from an example CSV file, catch an unexpected types in any of the columns, and output processed data to a different CSV file.
Sample program to read in records from an example CSV file, catch an unexpected types in any of the columns, and output processed data to a different CSV file.
data/data_versioning/example1
Sample program that connects to a running instance of Pachyderm.
Sample program that connects to a running instance of Pachyderm.
data/data_versioning/example2
Sample program that creates a pachyderm data repository.
Sample program that creates a pachyderm data repository.
data/data_versioning/example3
Sample program that commits data into Pachyderm data versioning.
Sample program that commits data into Pachyderm data versioning.
data/data_versioning/example4
Sample program that gets a versioned dataset/file from Pachyderm.
Sample program that gets a versioned dataset/file from Pachyderm.
data/data_versioning/exercises/exercise1
Sample program that creates a pachyderm data repository.
Sample program that creates a pachyderm data repository.
data/data_versioning/exercises/exercise2
Sample program that commits data into pachyderm's data versioning.
Sample program that commits data into pachyderm's data versioning.
data/data_versioning/exercises/template1
Sample program that creates a pachyderm data repository.
Sample program that creates a pachyderm data repository.
data/data_versioning/exercises/template2
Sample program that commits data into pachyderm's data versioning.
Sample program that commits data into pachyderm's data versioning.
data/dimensionality_reduction/example1
Sample program to illustrate the calculation of principal components.
Sample program to illustrate the calculation of principal components.
data/dimensionality_reduction/example2
Sample program to visualize the impact of dimensionality reduction.
Sample program to visualize the impact of dimensionality reduction.
data/dimensionality_reduction/example3
Sample program to project iris data on to principal components.
Sample program to project iris data on to principal components.
data/dimensionality_reduction/exercises/exercise1
Sample program to project iris data on to 3 principal components.
Sample program to project iris data on to 3 principal components.
data/dimensionality_reduction/exercises/template1
Sample program to project iris data on to 3 principal components.
Sample program to project iris data on to 3 principal components.
data/evaluation/example1
Sample program to calculate an R^2 value.
Sample program to calculate an R^2 value.
data/evaluation/example2
Sample program to calculate a mean absolute error.
Sample program to calculate a mean absolute error.
data/evaluation/example3
Sample program to calculate a accuracy.
Sample program to calculate a accuracy.
data/evaluation/example4
Sample program to calculate precision.
Sample program to calculate precision.
data/evaluation/example5
Sample program to calculate recall.
Sample program to calculate recall.
data/evaluation/exercises/exercise1
Sample program to calculate specificity.
Sample program to calculate specificity.
data/evaluation/exercises/exercise2
Sample program to calculate a mean squared error.
Sample program to calculate a mean squared error.
data/evaluation/exercises/template1
Sample program to calculate specificity.
Sample program to calculate specificity.
data/evaluation/exercises/template2
Sample program to calculate a mean squared error.
Sample program to calculate a mean squared error.
data/hypothesis_testing/example1
Sample program to calculate expected values.
Sample program to calculate expected values.
data/hypothesis_testing/example2
Sample program to calculate a chi-squared value.
Sample program to calculate a chi-squared value.
data/hypothesis_testing/example3
Sample program to output the result of the test, based on a critical value.
Sample program to output the result of the test, based on a critical value.
data/integrity/example2
Sample program to compare parsing a clean CSV with Go to parsing a clean CSV with python.
Sample program to compare parsing a clean CSV with Go to parsing a clean CSV with python.
data/integrity/example4
Sample program to illustrate maintaining integrity with Go in the presence of messy data.
Sample program to illustrate maintaining integrity with Go in the presence of messy data.
data/integrity/exercises/exercise1
Sample program to illustrate maintaining integrity with Go in the presence of messy data.
Sample program to illustrate maintaining integrity with Go in the presence of messy data.
data/integrity/exercises/template1
Sample program to illustrate maintaining integrity with Go in the presence of messy data.
Sample program to illustrate maintaining integrity with Go in the presence of messy data.
data/json/example1
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./example1 Sample program to show how to unmarshal JSON data from an API.
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./example1 Sample program to show how to unmarshal JSON data from an API.
data/json/example2
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./example1 Sample program to show how to save JSON data to a file.
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./example1 Sample program to show how to save JSON data to a file.
data/json/exercises/exercise1
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./exercise1 Sample program to show how to unmarshal JSON data from an API.
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./exercise1 Sample program to show how to unmarshal JSON data from an API.
data/json/exercises/template1
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./template1 Sample program to show how to unmarshal JSON data from an API.
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 go build ./template1 Sample program to show how to unmarshal JSON data from an API.
data/matrices/example1
Sample program to read in records from an example CSV file and form a matrix with gonum.
Sample program to read in records from an example CSV file and form a matrix with gonum.
data/matrices/example2
Sample program to show modifications to matrices.
Sample program to show modifications to matrices.
data/matrices/example3
Sample program to access values within a matrix.
Sample program to access values within a matrix.
data/matrices/example4
Sample program to illustrate various ways to format matrix output.
Sample program to illustrate various ways to format matrix output.
data/matrices/exercises/exercise1
Sample program to read in records from a CSV file and form a matrix with gonum.
Sample program to read in records from a CSV file and form a matrix with gonum.
data/matrices/exercises/template1
Sample program to read in records from a CSV file and form a matrix with gonum.
Sample program to read in records from a CSV file and form a matrix with gonum.
data/matrix_operations/example1
Sample program to show basic matrix operations.
Sample program to show basic matrix operations.
data/matrix_operations/example2
Sample program to compute the transpose, determinant, and inverse of a matrix.
Sample program to compute the transpose, determinant, and inverse of a matrix.
data/matrix_operations/example3
Sample program to solve an eigenvalue/vector problem.
Sample program to solve an eigenvalue/vector problem.
data/matrix_operations/example4
Sample program to compute vector and matrix norms.
Sample program to compute vector and matrix norms.
data/matrix_operations/exercises/exercise1
Sample program to divide a matrix by its norm.
Sample program to divide a matrix by its norm.
data/matrix_operations/exercises/template1
Sample program to divide a matrix by its norm.
Sample program to divide a matrix by its norm.
data/regression/example1
Sample program to profile our data set.
Sample program to profile our data set.
data/regression/example2
Sample program to investigate correlations between our target and our features.
Sample program to investigate correlations between our target and our features.
data/regression/example3
Sample program to create training, test, and holdout data sets.
Sample program to create training, test, and holdout data sets.
data/regression/example4
Sample program to train and test a regression model.
Sample program to train and test a regression model.
data/regression/example5
Sample program to validate a trained regression model on a holdout data set.
Sample program to validate a trained regression model on a holdout data set.
data/regression/exercises/exercise1b
Sample program to train and test a multiple regression model.
Sample program to train and test a multiple regression model.
data/regression/exercises/exercise1c
Sample program to validate a trained multiple regression model on a holdout data set.
Sample program to validate a trained multiple regression model on a holdout data set.
data/regression/exercises/template1b
Sample program to train and test a multiple regression model.
Sample program to train and test a multiple regression model.
data/regression/exercises/template1c
Sample program to validate a trained multiple regression model on a holdout data set.
Sample program to validate a trained multiple regression model on a holdout data set.
data/sql/example1
Sample program to connect to and ping a database connection.
Sample program to connect to and ping a database connection.
data/sql/example2
Sample program to load the iris dataset into a database.
Sample program to load the iris dataset into a database.
data/sql/example3
Sample program to retrieve results from a database.
Sample program to retrieve results from a database.
data/sql/example4
Sample program to modify data in a database.
Sample program to modify data in a database.
data/sql/exercises/exercise1
Sample program to retrieve results from a database.
Sample program to retrieve results from a database.
data/sql/exercises/exercise2
Sample program to delete rows in a database table.
Sample program to delete rows in a database table.
data/sql/exercises/template1
Sample program to retrieve results from a database.
Sample program to retrieve results from a database.
data/sql/exercises/template2
Sample program to delete rows in a database table.
Sample program to delete rows in a database table.
data/stats_measures/example1
Sample program to calculate means, modes, and medians.
Sample program to calculate means, modes, and medians.
data/stats_measures/example2
Sample program to calculate min, max, and range.
Sample program to calculate min, max, and range.
data/stats_measures/example3
Sample program to calculate standard deviation and variance.
Sample program to calculate standard deviation and variance.
data/stats_measures/example4
Sample program to calculate quantiles
Sample program to calculate quantiles
data/stats_measures/exercises/exercise1
Sample program to calculate both central tendency and statistical dispersion measures for the iris dataset.
Sample program to calculate both central tendency and statistical dispersion measures for the iris dataset.
data/stats_measures/exercises/template1
Sample program to calculate both central tendency and statistical dispersion measures for the iris dataset.
Sample program to calculate both central tendency and statistical dispersion measures for the iris dataset.
data/stats_visualization/example1
Sample program to generate a histogram of a normal distribution.
Sample program to generate a histogram of a normal distribution.
data/stats_visualization/example2
Sample program to generate a histogram of the iris data variables.
Sample program to generate a histogram of the iris data variables.
data/stats_visualization/example3
Sample program to generate a box plot of example distributions.
Sample program to generate a box plot of example distributions.
data/stats_visualization/example4
Sample program to generate box plots of the iris data variables.
Sample program to generate box plots of the iris data variables.
data/stats_visualization/exercises/exercise1
Sample program to generate a box plot of diabetes bmi values.
Sample program to generate a box plot of diabetes bmi values.
data/stats_visualization/exercises/exercise2
Sample program to generate a histogram of diabetes bmi values.
Sample program to generate a histogram of diabetes bmi values.
data/stats_visualization/exercises/template1
Sample program to generate a box plot of diabetes bmi values.
Sample program to generate a box plot of diabetes bmi values.
data/stats_visualization/exercises/template2
Sample program to generate a histogram of diabetes bmi values.
Sample program to generate a histogram of diabetes bmi values.
go/concurrency/channels/advanced/example1
Sample program to show the order of channel communication for unbuffered, buffered and closing channels based on the specification.
Sample program to show the order of channel communication for unbuffered, buffered and closing channels based on the specification.
go/concurrency/channels/example1
This sample program demonstrates the basic channel mechanics for goroutine signaling.
This sample program demonstrates the basic channel mechanics for goroutine signaling.
go/concurrency/channels/example2
Sample program to show how to use an unbuffered channel to simulate a game of tennis between two goroutines.
Sample program to show how to use an unbuffered channel to simulate a game of tennis between two goroutines.
go/concurrency/channels/example3
Sample program to show how to use an unbuffered channel to simulate a relay race between four goroutines.
Sample program to show how to use an unbuffered channel to simulate a relay race between four goroutines.
go/concurrency/channels/example4
This sample program demonstrates how to use a buffered channel to receive results from other goroutines in a guaranteed way.
This sample program demonstrates how to use a buffered channel to receive results from other goroutines in a guaranteed way.
go/concurrency/channels/example5
This sample program demonstrates how to use a channel to monitor the amount of time the program is running and terminate the program if it runs too long.
This sample program demonstrates how to use a channel to monitor the amount of time the program is running and terminate the program if it runs too long.
go/concurrency/channels/exercises/exercise1
Write a program where two goroutines pass an integer back and forth ten times.
Write a program where two goroutines pass an integer back and forth ten times.
go/concurrency/channels/exercises/exercise2
Write a program that uses a fan out pattern to generate 100 random numbers concurrently.
Write a program that uses a fan out pattern to generate 100 random numbers concurrently.
go/concurrency/channels/exercises/template1
Write a program where two goroutines pass an integer back and forth ten times.
Write a program where two goroutines pass an integer back and forth ten times.
go/concurrency/channels/exercises/template2
Write a program that uses a fan out pattern to generate 100 random numbers concurrently.
Write a program that uses a fan out pattern to generate 100 random numbers concurrently.
go/concurrency/data_race/advanced/example1
Sample program to show a more complicated race condition using an interface value.
Sample program to show a more complicated race condition using an interface value.
go/concurrency/data_race/example1
Sample program to show how to create race conditions in our programs.
Sample program to show how to create race conditions in our programs.
go/concurrency/data_race/example2
Sample program to show how to use the atomic package to provide safe access to numeric types.
Sample program to show how to use the atomic package to provide safe access to numeric types.
go/concurrency/data_race/example3
Sample program to show how to use a mutex to define critical sections of code that need synchronous access.
Sample program to show how to use a mutex to define critical sections of code that need synchronous access.
go/concurrency/data_race/example4
Sample program to show how to use a read/write mutex to define critical sections of code that needs synchronous access.
Sample program to show how to use a read/write mutex to define critical sections of code that needs synchronous access.
go/concurrency/data_race/exercises/exercise1
Answer for exercise 1 of Race Conditions.
Answer for exercise 1 of Race Conditions.
go/concurrency/data_race/exercises/template1
Fix the race condition in this program.
Fix the race condition in this program.
go/concurrency/goroutines/example1
Sample program to show how to create goroutines and how the scheduler behaves.
Sample program to show how to create goroutines and how the scheduler behaves.
go/concurrency/goroutines/example2
Sample program to show how the goroutine scheduler will time slice goroutines on a single thread.
Sample program to show how the goroutine scheduler will time slice goroutines on a single thread.
go/concurrency/goroutines/example3
Sample program to show how to create goroutines and how the goroutine scheduler behaves with two contexts.
Sample program to show how to create goroutines and how the goroutine scheduler behaves with two contexts.
go/concurrency/goroutines/exercises/exercise1
Create a program that declares two anonymous functions.
Create a program that declares two anonymous functions.
go/concurrency/goroutines/exercises/template1
Create a program that declares two anonymous functions.
Create a program that declares two anonymous functions.
go/concurrency/patterns/chat
Package chat implements a basic chat room.
Package chat implements a basic chat room.
go/concurrency/patterns/chat/main
This sample program demonstrates how to create a simple chat system.
This sample program demonstrates how to create a simple chat system.
go/concurrency/patterns/logger
Package logger shows a pattern of using a buffer to handle log write continuity by dealing with write latencies by throwing away log data.
Package logger shows a pattern of using a buffer to handle log write continuity by dealing with write latencies by throwing away log data.
go/concurrency/patterns/logger/main
This sample program demonstrates how the logger package works.
This sample program demonstrates how the logger package works.
go/concurrency/patterns/pool
Package pool manages a user defined set of resources.
Package pool manages a user defined set of resources.
go/concurrency/patterns/pool/main
This sample program demonstrates how to use the pool package to share a simulated set of database connections.
This sample program demonstrates how to use the pool package to share a simulated set of database connections.
go/concurrency/patterns/task
Package task provides a pool of goroutines to perform tasks.
Package task provides a pool of goroutines to perform tasks.
go/concurrency/patterns/task/main
This sample program demonstrates how to use the work package to use a pool of goroutines to get work done.
This sample program demonstrates how to use the work package to use a pool of goroutines to get work done.
go/design/composition/assertions/example1
Sample program demonstrating when implicit interface conversions are provided by the compiler.
Sample program demonstrating when implicit interface conversions are provided by the compiler.
go/design/composition/assertions/example2
Sample program demonstrating that type assertions are a runtime and not compile time construct.
Sample program demonstrating that type assertions are a runtime and not compile time construct.
go/design/composition/decoupling/example1
Sample program demonstrating struct composition.
Sample program demonstrating struct composition.
go/design/composition/decoupling/example2
Sample program demonstrating decoupling with interfaces.
Sample program demonstrating decoupling with interfaces.
go/design/composition/decoupling/example3
Sample program demonstrating interface composition.
Sample program demonstrating interface composition.
go/design/composition/decoupling/example4
Sample program demonstrating decoupling with interface composition.
Sample program demonstrating decoupling with interface composition.
go/design/composition/decoupling/example5
Sample program demonstrating removing interface pollution.
Sample program demonstrating removing interface pollution.
go/design/composition/exercises/exercise1
Using the template, declare a set of concrete types that implement the set of predefined interface types.
Using the template, declare a set of concrete types that implement the set of predefined interface types.
go/design/composition/grouping/example1
This is an example of using type hierarchies with a OOP pattern.
This is an example of using type hierarchies with a OOP pattern.
go/design/composition/grouping/example2
This is an example of using composition and interfaces.
This is an example of using composition and interfaces.
go/design/composition/mocking/example1
Sample program to show how you can personally mock concrete types when you need to for your own packages or tests.
Sample program to show how you can personally mock concrete types when you need to for your own packages or tests.
go/design/composition/mocking/example1/pubsub
Package pubsub simulates a package that provides publication/subscription type services.
Package pubsub simulates a package that provides publication/subscription type services.
go/design/composition/pollution/example1
This is an example that creates interface pollution by improperly using an interface when one is not needed.
This is an example that creates interface pollution by improperly using an interface when one is not needed.
go/design/composition/pollution/example2
This is an example that removes the interface pollution by removing the interface and using the concrete type directly.
This is an example that removes the interface pollution by removing the interface and using the concrete type directly.
go/design/error_handling/example1
Sample program to show how the default error type is implemented.
Sample program to show how the default error type is implemented.
go/design/error_handling/example2
Sample program to show how to use error variables to help the caller determine the exact error being returned.
Sample program to show how to use error variables to help the caller determine the exact error being returned.
go/design/error_handling/example3
http://golang.org/src/pkg/encoding/json/decode.go Sample program to show how to implement a custom error type based on the json package in the standard library.
http://golang.org/src/pkg/encoding/json/decode.go Sample program to show how to implement a custom error type based on the json package in the standard library.
go/design/error_handling/example4
Package example5 provides code to show how to implement behavior as context.
Package example5 provides code to show how to implement behavior as context.
go/design/error_handling/example5
Sample program to show see if the class can find the bug.
Sample program to show see if the class can find the bug.
go/design/error_handling/example5/reason
Sample program to show see if the class can find the bug.
Sample program to show see if the class can find the bug.
go/design/error_handling/example6
Sample program to show how wrapping errors work.
Sample program to show how wrapping errors work.
go/design/error_handling/exercises/exercise1
Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.
Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.
go/design/error_handling/exercises/exercise2
Create a custom error type called appError that contains three fields, err error, message string and code int.
Create a custom error type called appError that contains three fields, err error, message string and code int.
go/design/error_handling/exercises/template1
Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.
Create two error variables, one called ErrInvalidValue and the other called ErrAmountTooLarge.
go/design/error_handling/exercises/template2
Create a custom error type called appError that contains three fields, err error, message string and code int.
Create a custom error type called appError that contains three fields, err error, message string and code int.
go/language/arrays/example1
Sample program to show how to declare and iterate over arrays of different types.
Sample program to show how to declare and iterate over arrays of different types.
go/language/arrays/example2
Sample program to show how arrays of different sizes are not of the same type.
Sample program to show how arrays of different sizes are not of the same type.
go/language/arrays/example3
Sample program to show how the behavior of the for range and how memory for an array is contiguous.
Sample program to show how the behavior of the for range and how memory for an array is contiguous.
go/language/arrays/example4
Sample program to show how the for range has both value and pointer semantics.
Sample program to show how the for range has both value and pointer semantics.
go/language/arrays/exercises/exercise1
Declare an array of 5 strings with each element initialized to its zero value.
Declare an array of 5 strings with each element initialized to its zero value.
go/language/arrays/exercises/template1
Declare an array of 5 strings with each element initialized to its zero value.
Declare an array of 5 strings with each element initialized to its zero value.
go/language/constants/example1
Sample program to show how to declare constants and their implementation in Go.
Sample program to show how to declare constants and their implementation in Go.
go/language/constants/example2
Sample program to show how constants do have a parallel type system.
Sample program to show how constants do have a parallel type system.
go/language/constants/example3
Sample program to show how iota works.
Sample program to show how iota works.
go/language/constants/example4
Sample program to show how literal, constant and variables work within the scope of implicit conversion.
Sample program to show how literal, constant and variables work within the scope of implicit conversion.
go/language/constants/exercises/exercise1
Declare an untyped and typed constant and display their values.
Declare an untyped and typed constant and display their values.
go/language/constants/exercises/template1
Declare an untyped and typed constant and display their values.
Declare an untyped and typed constant and display their values.
go/language/embedding/example1
Sample program to show how what we are doing is NOT embedding a type but just using a type as a field.
Sample program to show how what we are doing is NOT embedding a type but just using a type as a field.
go/language/embedding/example2
Sample program to show how to embed a type into another type and the relationship between the inner and outer type.
Sample program to show how to embed a type into another type and the relationship between the inner and outer type.
go/language/embedding/example3
Sample program to show how embedded types work with interfaces.
Sample program to show how embedded types work with interfaces.
go/language/embedding/example4
Sample program to show what happens when the outer and inner type implement the same interface.
Sample program to show what happens when the outer and inner type implement the same interface.
go/language/embedding/exercises/exercise1
Copy the code from the template.
Copy the code from the template.
go/language/embedding/exercises/template1
Copy the code from the template.
Copy the code from the template.
go/language/exporting/example1
Sample program to show how to access an exported identifier.
Sample program to show how to access an exported identifier.
go/language/exporting/example1/counters
Package counters provides alert counter support.
Package counters provides alert counter support.
go/language/exporting/example2
Sample program to show how the program can't access an unexported identifier from another package.
Sample program to show how the program can't access an unexported identifier from another package.
go/language/exporting/example2/counters
Package counters provides alert counter support.
Package counters provides alert counter support.
go/language/exporting/example3
Sample program to show how the program can access a value of an unexported identifier from another package.
Sample program to show how the program can access a value of an unexported identifier from another package.
go/language/exporting/example3/counters
Package counters provides alert counter support.
Package counters provides alert counter support.
go/language/exporting/example4
Sample program to show how unexported fields from an exported struct type can't be accessed directly.
Sample program to show how unexported fields from an exported struct type can't be accessed directly.
go/language/exporting/example4/users
Package users provides support for user management.
Package users provides support for user management.
go/language/exporting/example5
Sample program to show how to create values from exported types with embedded unexported types.
Sample program to show how to create values from exported types with embedded unexported types.
go/language/exporting/example5/users
Package users provides support for user management.
Package users provides support for user management.
go/language/exporting/exercises/exercise1
Create a package named toy with a single exported struct type named Toy.
Create a package named toy with a single exported struct type named Toy.
go/language/exporting/exercises/exercise1/toy
Package toy contains support for managing toy inventory.
Package toy contains support for managing toy inventory.
go/language/exporting/exercises/template1
Create a package named toy with a single exported struct type named Toy.
Create a package named toy with a single exported struct type named Toy.
go/language/exporting/exercises/template1/toy
Package toy contains support for managing toy inventory.
Package toy contains support for managing toy inventory.
go/language/functions/advanced/example1
Sample program to show how to recover from panics.
Sample program to show how to recover from panics.
go/language/functions/example1
Sample program to show how functions can return multiple values while using named and struct types.
Sample program to show how functions can return multiple values while using named and struct types.
go/language/functions/example2
Sample program to show how we can use the blank identifier to ignore return values.
Sample program to show how we can use the blank identifier to ignore return values.
go/language/functions/example3
Sample program to show some of the mechanics behind the short variable declaration operator redeclares.
Sample program to show some of the mechanics behind the short variable declaration operator redeclares.
go/language/functions/example4
Sample program to show how anonymous functions and closures work.
Sample program to show how anonymous functions and closures work.
go/language/functions/exercises/exercise1
Declare a struct type to maintain information about a user.
Declare a struct type to maintain information about a user.
go/language/functions/exercises/template1
Declare a struct type to maintain information about a user.
Declare a struct type to maintain information about a user.
go/language/interfaces/advanced/example1
Sample program that explores how interface assignments work when values are stored inside the interface.
Sample program that explores how interface assignments work when values are stored inside the interface.
go/language/interfaces/example1
Sample program to show how polymorphic behavior with interfaces.
Sample program to show how polymorphic behavior with interfaces.
go/language/interfaces/example2
Sample program to show how to understand method sets.
Sample program to show how to understand method sets.
go/language/interfaces/example3
Sample program to show how you can't always get the address of a value.
Sample program to show how you can't always get the address of a value.
go/language/interfaces/example4
Sample program to show how method sets can affect behavior.
Sample program to show how method sets can affect behavior.
go/language/interfaces/example5
Sample program to show how the concrete value assigned to the interface is what is stored inside the interface.
Sample program to show how the concrete value assigned to the interface is what is stored inside the interface.
go/language/interfaces/exercises/exercise1
Declare an interface named speaker with a method named speak.
Declare an interface named speaker with a method named speak.
go/language/interfaces/exercises/template1
Declare an interface named speaker with a method named speak.
Declare an interface named speaker with a method named speak.
go/language/maps/example1
Sample program to show how to declare, initialize and iterate over a map.
Sample program to show how to declare, initialize and iterate over a map.
go/language/maps/example2
Sample program to show how to declare and initialize a map using a map literal and delete a key.
Sample program to show how to declare and initialize a map using a map literal and delete a key.
go/language/maps/example3
Sample program to show how only types that can have equality defined on them can be a map key.
Sample program to show how only types that can have equality defined on them can be a map key.
go/language/maps/exercises/exercise1
Declare and make a map of integer values with a string as the key.
Declare and make a map of integer values with a string as the key.
go/language/maps/exercises/template1
Declare and make a map of integer values with a string as the key.
Declare and make a map of integer values with a string as the key.
go/language/methods/example1
Sample program to show how to declare methods and how the Go compiler supports them.
Sample program to show how to declare methods and how the Go compiler supports them.
go/language/methods/example2
Sample program to show how to declare methods against a named type.
Sample program to show how to declare methods against a named type.
go/language/methods/example3
Sample program to show how to declare function variables.
Sample program to show how to declare function variables.
go/language/methods/example4
Sample program to show how to declare and use function types.
Sample program to show how to declare and use function types.
go/language/methods/exercises/exercise1
Declare a struct that represents a baseball player.
Declare a struct that represents a baseball player.
go/language/methods/exercises/template1
Declare a struct that represents a baseball player.
Declare a struct that represents a baseball player.
go/language/pointers/example1
Sample program to show the basic concept of pass by value.
Sample program to show the basic concept of pass by value.
go/language/pointers/example2
Sample program to show the basic concept of using a pointer to share data.
Sample program to show the basic concept of using a pointer to share data.
go/language/pointers/example3
Sample program to show the basic concept of using a pointer to share data.
Sample program to show the basic concept of using a pointer to share data.
go/language/pointers/example4
Sample program to teach the mechanics of escape analysis.
Sample program to teach the mechanics of escape analysis.
go/language/pointers/example5
Sample program to show how stacks grow/change.
Sample program to show how stacks grow/change.
go/language/pointers/exercises/exercise1
Declare and initialize a variable of type int with the value of 20.
Declare and initialize a variable of type int with the value of 20.
go/language/pointers/exercises/exercise2
Declare a struct type and create a value of this type.
Declare a struct type and create a value of this type.
go/language/pointers/exercises/template1
Declare and initialize a variable of type int with the value of 20.
Declare and initialize a variable of type int with the value of 20.
go/language/pointers/exercises/template2
Declare a struct type and create a value of this type.
Declare a struct type and create a value of this type.
go/language/slices/advanced/example1
Sample program to show how to use a third index slice.
Sample program to show how to use a third index slice.
go/language/slices/example1
Sample program to show how the capacity of the slice is not available for use.
Sample program to show how the capacity of the slice is not available for use.
go/language/slices/example2
Sample program to show the components of a slice.
Sample program to show the components of a slice.
go/language/slices/example3
Sample program to show how to takes slices of slices to create different views of and make changes to the underlying array.
Sample program to show how to takes slices of slices to create different views of and make changes to the underlying array.
go/language/slices/example4
Sample program to show how to grow a slice using the built-in function append and how append grows the capacity of the underlying array.
Sample program to show how to grow a slice using the built-in function append and how append grows the capacity of the underlying array.
go/language/slices/example5
Sample program to show how one needs to be careful when appending to a slice when you have a reference to an element.
Sample program to show how one needs to be careful when appending to a slice when you have a reference to an element.
go/language/slices/example6
Sample program to show how strings have a UTF-8 encoded byte array.
Sample program to show how strings have a UTF-8 encoded byte array.
go/language/slices/example7
Sample program to show how to declare and use variadic functions.
Sample program to show how to declare and use variadic functions.
go/language/slices/example8
Sample program to show how the for range has both value and pointer semantics.
Sample program to show how the for range has both value and pointer semantics.
go/language/slices/exercises/exercise1
Declare a nil slice of integers.
Declare a nil slice of integers.
go/language/slices/exercises/template1
Declare a nil slice of integers.
Declare a nil slice of integers.
go/language/struct_types/advanced/example1
Sample program to show how struct types align on boundaries.
Sample program to show how struct types align on boundaries.
go/language/struct_types/example1
Sample program to show how to declare and initialize struct types.
Sample program to show how to declare and initialize struct types.
go/language/struct_types/example2
Sample program to show how to declare and initialize anonymous struct types.
Sample program to show how to declare and initialize anonymous struct types.
go/language/struct_types/example3
Sample program to show how variables of an unnamed type can be assigned to variables of a named type, when they are identical.
Sample program to show how variables of an unnamed type can be assigned to variables of a named type, when they are identical.
go/language/struct_types/exercises/exercise1
Declare a struct type to maintain information about a user (name, email and age).
Declare a struct type to maintain information about a user (name, email and age).
go/language/struct_types/exercises/template1
Declare a struct type to maintain information about a user (name, email and age).
Declare a struct type to maintain information about a user (name, email and age).
go/language/variables/example1
Sample program to show how to declare variables.
Sample program to show how to declare variables.
go/language/variables/exercises/exercise1
Declare three variables that are initialized to their zero value and three declared with a literal value.
Declare three variables that are initialized to their zero value and three declared with a literal value.
go/language/variables/exercises/template1
Declare three variables that are initialized to their zero value and three declared with a literal value.
Declare three variables that are initialized to their zero value and three declared with a literal value.
go/packages/context/example1
Sample program to show how to store and retrieve values from a context.
Sample program to show how to store and retrieve values from a context.
go/packages/context/example2
Sample program to show how to use the WithCancel function.
Sample program to show how to use the WithCancel function.
go/packages/context/example3
Sample program to show how to use the WithDeadline function.
Sample program to show how to use the WithDeadline function.
go/packages/context/example4
Sample program to show how to use the WithTimeout function of the Context package.
Sample program to show how to use the WithTimeout function of the Context package.
go/packages/context/example5
Sample program that implements a web request with a context that is used to timeout the request if it takes too long.
Sample program that implements a web request with a context that is used to timeout the request if it takes too long.
go/packages/context/exercises/exercise1
Sample program that implements a simple web service using the context to handle timeouts and pass context into the request.
Sample program that implements a simple web service using the context to handle timeouts and pass context into the request.
go/packages/encoding/example1
Sample program to show how to unmarshal a JSON document into a user defined struct type.
Sample program to show how to unmarshal a JSON document into a user defined struct type.
go/packages/encoding/example2
Sample program to show how to unmarshal a JSON document into a user defined struct type from a file.
Sample program to show how to unmarshal a JSON document into a user defined struct type from a file.
go/packages/encoding/example3
Sample program to show how to marshal a user defined struct type into a string.
Sample program to show how to marshal a user defined struct type into a string.
go/packages/encoding/example4
Sample program to show how write a custom Unmarshal and Marshal functions.
Sample program to show how write a custom Unmarshal and Marshal functions.
go/packages/encoding/exercises/exercise1
Create a file with an array of JSON documents that contain a user name and email address.
Create a file with an array of JSON documents that contain a user name and email address.
go/packages/encoding/exercises/template1
Create a file with an array of JSON documents that contain a user name and email address.
Create a file with an array of JSON documents that contain a user name and email address.
go/packages/io/advanced/example1
Sample program to show how io.Writes can be embedded within other Writer calls to perform complex writes.
Sample program to show how io.Writes can be embedded within other Writer calls to perform complex writes.
go/packages/io/advanced/example2
Sample program that adds a few more features.
Sample program that adds a few more features.
go/packages/io/example1
Sample program to show how different functions from the standard library use the io.Writer interface.
Sample program to show how different functions from the standard library use the io.Writer interface.
go/packages/io/example2
Sample program to show how to write a simple version of curl using the io.Reader and io.Writer interface support.
Sample program to show how to write a simple version of curl using the io.Reader and io.Writer interface support.
go/packages/io/example3
Sample program to show how to use a MultiWriter to perform writes to multiple devices with one write call.
Sample program to show how to use a MultiWriter to perform writes to multiple devices with one write call.
go/packages/io/example4
Sample program that takes a stream of bytes and looks for the bytes “elvis” and when they are found, replace them with “Elvis”.
Sample program that takes a stream of bytes and looks for the bytes “elvis” and when they are found, replace them with “Elvis”.
go/packages/io/exercises/exercise1
Download any document from the web and display the content in the terminal and write it to a file at the same time.
Download any document from the web and display the content in the terminal and write it to a file at the same time.
go/packages/io/exercises/template1
Download any document from the web and display the content in the terminal and write it to a file at the same time.
Download any document from the web and display the content in the terminal and write it to a file at the same time.
go/packages/logging/example1
Sample program to show how to use the log package from the standard library.
Sample program to show how to use the log package from the standard library.
go/packages/logging/example2
Sample program to show how to extend the log package from the standard library.
Sample program to show how to extend the log package from the standard library.
go/packages/logging/exercises/exercise1
Setup a new program to use the log package.
Setup a new program to use the log package.
go/packages/logging/exercises/template1
Setup a new program to use the log package.
Setup a new program to use the log package.
go/packages/reflection/exercises/exercise1
Declare a struct type that represents a request for a customer invoice.
Declare a struct type that represents a request for a customer invoice.
go/packages/reflection/exercises/template1
Declare a struct type that represents a request for a customer invoice.
Declare a struct type that represents a request for a customer invoice.
go/packages/reflection/inspect/integer
Example shows how to use reflection to decode an integer.
Example shows how to use reflection to decode an integer.
go/packages/reflection/inspect/struct
Example shows how to inspect a structs fields and display the field name, type and value.
Example shows how to inspect a structs fields and display the field name, type and value.
go/packages/reflection/interface/map
Example shows how to reflect over a map of struct type values that are stored inside an interface value.
Example shows how to reflect over a map of struct type values that are stored inside an interface value.
go/packages/reflection/interface/pointer
Example shows how to reflect over a struct type pointer that is stored inside an interface value.
Example shows how to reflect over a struct type pointer that is stored inside an interface value.
go/packages/reflection/interface/slice
Example shows how to reflect over a slice of struct type values that are stored inside an interface value.
Example shows how to reflect over a slice of struct type values that are stored inside an interface value.
go/packages/reflection/interface/struct
Example shows how to reflect over a struct type value that is stored inside an interface value.
Example shows how to reflect over a struct type value that is stored inside an interface value.
go/packages/reflection/tag
Example shows how to reflect on a struct type with tags.
Example shows how to reflect on a struct type with tags.
go/profiling/godebug
Sample program that implements a simple web service that will allow us to explore how to use the GODEBUG variable.
Sample program that implements a simple web service that will allow us to explore how to use the GODEBUG variable.
go/profiling/http_trace/example1
Sample program to show how the httptrace package provides a number of hooks to gather information during an HTTP round trip about a variety of events.
Sample program to show how the httptrace package provides a number of hooks to gather information during an HTTP round trip about a variety of events.
go/profiling/http_trace/example2
Sample program to show how to use the http trace with a unique Client and Transport.
Sample program to show how to use the http trace with a unique Client and Transport.
go/profiling/memcpu
Sample program that takes a stream of bytes and looks for the bytes “elvis” and when they are found, replace them with “Elvis”.
Sample program that takes a stream of bytes and looks for the bytes “elvis” and when they are found, replace them with “Elvis”.
go/profiling/pprof
Sample program that implements a simple web service that will allow us to explore how to use the http/pprof tooling.
Sample program that implements a simple web service that will allow us to explore how to use the http/pprof tooling.
go/profiling/project
This program provides a sample web service that uses concurrency and channels to perform a coordinated set of asynchronous searches.
This program provides a sample web service that uses concurrency and channels to perform a coordinated set of asynchronous searches.
go/profiling/project/search
Package search manages the searching of results against different news feeds.
Package search manages the searching of results against different news feeds.
go/profiling/project/service
Package service maintains the logic for the web service.
Package service maintains the logic for the web service.
go/profiling/stack_trace/example1
Sample program to show how to read a stack trace.
Sample program to show how to read a stack trace.
go/profiling/stack_trace/example2
Sample program to show how to read a stack trace when it packs values.
Sample program to show how to read a stack trace when it packs values.
go/profiling/stack_trace/example3
Sample program that implements a simple web service that will allow us to explore how to look at core dumps.
Sample program that implements a simple web service that will allow us to explore how to look at core dumps.
go/profiling/trace
Sample program that performs a series of I/O related tasks to better understand tracing in Go.
Sample program that performs a series of I/O related tasks to better understand tracing in Go.
go/testing/benchmarks/caching
Package caching provides code to show why Data Oriented Design matters.
Package caching provides code to show why Data Oriented Design matters.
go/testing/fuzzing/example1
Package api provides an example on how to use go-fuzz.
Package api provides an example on how to use go-fuzz.
go/testing/fuzzing/exercises/exercise1
Package fuzzprot provides the ability to unpack user values from our binary protocol.
Package fuzzprot provides the ability to unpack user values from our binary protocol.
go/testing/tests/example4
Sample program that implements a simple web service.
Sample program that implements a simple web service.
go/testing/tests/example4/handlers
Package handlers provides the endpoints for the web service.
Package handlers provides the endpoints for the web service.
nats/basic/async
Sample program to show to connect and publish/subscribe for messages.
Sample program to show to connect and publish/subscribe for messages.
nats/basic/channels
Sample program to show to connect and publish/subscribe for messages.
Sample program to show to connect and publish/subscribe for messages.
nats/basic/queue
Sample program to show to using the queuing functionality to allow a round robin of services to handle messages.
Sample program to show to using the queuing functionality to allow a round robin of services to handle messages.
nats/basic/request
Sample program to show to connect and publish/subscribe requests.
Sample program to show to connect and publish/subscribe requests.
nats/basic/sync
Sample program to show to connect and publish/subscribe for messages.
Sample program to show to connect and publish/subscribe for messages.
nats/chat
Sample program to show how to build a very basic chat client using NATS.
Sample program to show how to build a very basic chat client using NATS.
nats/services/basic/db
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 Sample program to show what a basic web service might look like.
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 Sample program to show what a basic web service might look like.
nats/services/basic/web
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 Sample program to show what a basic web service might look like.
All material is licensed under the Apache License Version 2.0, January 2004 http://www.apache.org/licenses/LICENSE-2.0 Sample program to show what a basic web service might look like.
web/apis/example1
Sample program to show how to create a simple web api with different versions.
Sample program to show how to create a simple web api with different versions.
web/apis/example2
Sample program to show how to have a single route for the api but have access to either through configuration.
Sample program to show how to have a single route for the api but have access to either through configuration.
web/apis/example3
Sample program to show how to create a basic CRUD based web api for customers.
Sample program to show how to create a basic CRUD based web api for customers.
web/auth/example1
Sample program to show how to apply basic authentication with the standard library for your web request.
Sample program to show how to apply basic authentication with the standard library for your web request.
web/auth/example2
Sample program to show how to apply basic authentication with the goth package for your web request.
Sample program to show how to apply basic authentication with the goth package for your web request.
web/auth/example3
Sample program to show how to use JWTs
Sample program to show how to use JWTs
web/basics/example1
Sample program to show how to create a handler for a basic web app.
Sample program to show how to create a handler for a basic web app.
web/basics/example2
Sample program to show how to create handlers for different routes.
Sample program to show how to create handlers for different routes.
web/basics/example3
Sample program to show how to create handlers for different routes utilizing the default mux.
Sample program to show how to create handlers for different routes utilizing the default mux.
web/basics/example4
Sample program to show how to use methods as
Sample program to show how to use methods as
web/basics/example5
Sample program to show how to create handlers out of any function using http.HandlerFunc.
Sample program to show how to create handlers out of any function using http.HandlerFunc.
web/basics/example6
Sample program to show how http servers already handle concurrent requests.
Sample program to show how http servers already handle concurrent requests.
web/consuming/example6
Sample program to how to use JWT for authentication.
Sample program to how to use JWT for authentication.
web/consuming/exercises/exercise1
Call the GitHub API to get a list of repository contributors.
Call the GitHub API to get a list of repository contributors.
web/consuming/exercises/template1
Call the GitHub API to get a list of repository contributors.
Call the GitHub API to get a list of repository contributors.
web/context/example1
Sample program to show how to work with the Context package.
Sample program to show how to work with the Context package.
web/context/example2
Sample program to show how to work with the Gorilla Context package.
Sample program to show how to work with the Gorilla Context package.
web/middleware/example1
Sample program to show how to apply middleware.
Sample program to show how to apply middleware.
web/middleware/example2
Sample program to show how to apply middleware using negroni.
Sample program to show how to apply middleware using negroni.
web/middleware/example3
Sample program to show how to apply middleware using negroni.
Sample program to show how to apply middleware using negroni.
web/muxers/example1
Sample program to show how to use the pat router.
Sample program to show how to use the pat router.
web/muxers/example2
Sample program to show how to use the httprouter router.
Sample program to show how to use the httprouter router.
web/muxers/example3
Sample program to show how to use the echo toolkit.
Sample program to show how to use the echo toolkit.
web/posts/example1
Sample program to show how to handle different HTTP verbs.
Sample program to show how to handle different HTTP verbs.
web/posts/example2
Sample program to show how to handle forms using a single handler for the GET and POST calls.
Sample program to show how to handle forms using a single handler for the GET and POST calls.
web/posts/example3
Sample program to show how to decode forms into structs.
Sample program to show how to decode forms into structs.
web/posts/example4
Sample program to show how to handle the uploading of file content in a request.
Sample program to show how to handle the uploading of file content in a request.
web/rest/example1
Sample program to show how to use a regex to handle REST based URL schemas and routes.
Sample program to show how to use a regex to handle REST based URL schemas and routes.
web/serializers/example1
Sample program to show how to use the JSON encoder.
Sample program to show how to use the JSON encoder.
web/serializers/example2
Sample program to show how to implement the json.Marshaler interface to dictate the marshaling.
Sample program to show how to implement the json.Marshaler interface to dictate the marshaling.
web/serializers/example3
Sample program to show how to use the XML encoder.
Sample program to show how to use the XML encoder.
web/serializers/example4
Sample program to show how to implement the xml.Marshaler interface to dictate the marshaling.
Sample program to show how to implement the xml.Marshaler interface to dictate the marshaling.
web/serializers/example5
Sample program to show common JSON mistakes.
Sample program to show common JSON mistakes.
web/sessions_cookies/example1
Sample program to show how to use sessions in your web app.
Sample program to show how to use sessions in your web app.
web/sessions_cookies/example2
Sample program to show how to use a cookie in your web app.
Sample program to show how to use a cookie in your web app.
web/shutdown/example1
This program shows how to launch a web server then shut it down gracefully.
This program shows how to launch a web server then shut it down gracefully.
web/sockets/example1
Sample program on how to use the Google web socket package to bind HTTP requests.
Sample program on how to use the Google web socket package to bind HTTP requests.
web/sockets/example2
Sample program on how to use the Gorilla web socket package to bind HTTP requests.
Sample program on how to use the Gorilla web socket package to bind HTTP requests.
web/templates/example1
Sample program to show how to use create, parse and execute a simple template.
Sample program to show how to use create, parse and execute a simple template.
web/templates/example2
Sample program to show how to use create, parse and execute a template with simple data processing.
Sample program to show how to use create, parse and execute a template with simple data processing.
web/templates/example3
Sample program to show how to use create, parse and execute a template with simple data processing.
Sample program to show how to use create, parse and execute a template with simple data processing.
web/templates/example4
Sample program to show how to use create, parse and execute a template with simple data processing.
Sample program to show how to use create, parse and execute a template with simple data processing.
web/templates/example5
Sample program to show how to use create, parse and execute a template with simple data processing.
Sample program to show how to use create, parse and execute a template with simple data processing.
web/templates/example6
Sample program to show how to use create, parse and execute a template with simple data processing.
Sample program to show how to use create, parse and execute a template with simple data processing.
web/templates/example7
Sample program to show how to serve up static files from a web application and deliver a home page.
Sample program to show how to serve up static files from a web application and deliver a home page.
web/templates/example8
Sample program to show how to bundle assets, static files, etc into web application and access these bundled resources.
Sample program to show how to bundle assets, static files, etc into web application and access these bundled resources.
web/tls/example1
Sample program to show how to launch a server that uses TLS.
Sample program to show how to launch a server that uses TLS.
web/tls/example2
Sample program to show how to launch a server with automatic TLS using ACME via LetsEncrypt.
Sample program to show how to launch a server with automatic TLS using ACME via LetsEncrypt.

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