js

README

Dairaga JS (Experimental)

It is a experimental toolkit about GO Webassembly with GO 1.13. Therefore, it is incompatible with 1.11 and before.

Packages

js

JS wraps javascript global objects, like window, document, Event, EventTarget, and Error.

dom

bs

BS is a Bootstrap toolkit warps base component and utilities.

• alert
• badge
• button
• card
• flex
• list
• modal: It is a Bootstrap Modal component.
• progress
• spinner
• table
• toast

io

It wraps javascript File and FileReader.

media

It wraps javascript Audio API, like AudioContext, MediaStream, AudioBuffer and AudioNode.

• recorder: It is a recording tool.

storage

url

websocket

It wraps javascript WebSocket.

xhr

It wraps javascipt XMLHttpRequest and provides API and methods like GO net/http.

Documentation

Overview

Package js a experimental toolkit about Go Webassembly with Go 1.12. Therefore, it is incompatible with 1.11 and before. It includes some common javascript functions, DOM, File, FileReader, Recorder with Web Audio API, WebSocket API, XHTTPRequest and Bootstrap (4) toolkit.

Index

• func Alert(a ...interface{})
• func Alertf(format string, a ...interface{})
• func Bytes(arrayBuffer Value) []byte
• func Confirm(a ...interface{}) bool
• func Confirmf(format string, a ...interface{}) bool
• func IsNaN(v js.Value) bool
• func IsUndefined(v js.Value) bool
• func ParseFloat(val string) (float64, bool)
• func ParseInt(val string, radix int) (int, bool)
• func RegisterFunc(name string, fn Func)
• func RegisterValue(name string, val Value)
• func ToGoBytes(uint8Array Value) []byte
• func TypedArrayOf(x interface{}) js.Value
• type Error
  • func ErrorOf(x Value) *Error
  • func (err *Error) Error() string
  • func (err *Error) JSValue() Value
• type Event
  • func EventOf(x Value) *Event
  • func (e *Event) JSValue() Value
  • func (e *Event) String() string
  • func (e *Event) Target() Value
  • func (e *Event) Type() string
• type EventTarget
  • func EventTargetOf(v Value) *EventTarget
  • func (e *EventTarget) AddEventListener(event string, cb Func) *EventTarget
  • func (e *EventTarget) JSValue() Value
  • func (e *EventTarget) Register(event string, cb Func) *EventTarget
  • func (e *EventTarget) Release()
• type Func
  • func FuncOf(fn func(js.Value, []js.Value) interface{}) Func
• type Value
  • func Call(fn string, args ...interface{}) Value
  • func Get(name string) Value
  • func Global() Value
  • func New(constructor string, args ...interface{}) Value
  • func ToJSUint8Array(src []byte) Value
  • func ValueOf(x interface{}) Value
  • func Window() Value

Functions

func Alert

func Alert(a ...interface{})

Alert invokes window.alert function.

func Alertf

func Alertf(format string, a ...interface{})

Alertf invokes window.alert function.

func Bytes

func Bytes(arrayBuffer Value) []byte

Bytes convert javascript array buffer to Go byte slice.

func Confirm

func Confirm(a ...interface{}) bool

Confirm invokes window.confirm function.

func Confirmf

func Confirmf(format string, a ...interface{}) bool

Confirmf invokes window.confirm function.

func IsNaN

func IsNaN(v js.Value) bool

IsNaN ...

func IsUndefined

func IsUndefined(v js.Value) bool

IsUndefined ...

func ParseFloat

func ParseFloat(val string) (float64, bool)

ParseFloat ...

func ParseInt

func ParseInt(val string, radix int) (int, bool)

ParseInt ...

func RegisterFunc

func RegisterFunc(name string, fn Func)

RegisterFunc ...

func RegisterValue

func RegisterValue(name string, val Value)

RegisterValue ...

func ToGoBytes

func ToGoBytes(uint8Array Value) []byte

ToGoBytes copy javascript uint8Array content to go bytes.

func TypedArrayOf

func TypedArrayOf(x interface{}) js.Value

TypedArrayOf return a javascript typed array. x must be must be []int8, []int16, []int32, []uint8, []uint16, []uint32, []float32 and []float64.

Types

type Error

type Error struct {
	// contains filtered or unexported fields
}

Error represents javascript error object.

func ErrorOf

func ErrorOf(x Value) *Error

ErrorOf returns a error object.

func (*Error) Error

func (err *Error) Error() string

func (*Error) JSValue

func (err *Error) JSValue() Value

JSValue ...

type Event

type Event struct {
	// contains filtered or unexported fields
}

Event represents javascript Event. https://developer.mozilla.org/en-US/docs/Web/API/Event

func EventOf

func EventOf(x Value) *Event

EventOf returns event.

func (*Event) JSValue

func (e *Event) JSValue() Value

JSValue ...

func (*Event) String

func (e *Event) String() string

func (*Event) Target

func (e *Event) Target() Value

Target https://developer.mozilla.org/en-US/docs/Web/API/Event/target

func (*Event) Type

func (e *Event) Type() string

Type https://developer.mozilla.org/en-US/docs/Web/API/Event/type

type EventTarget

type EventTarget struct {
	// contains filtered or unexported fields
}

EventTarget represents javascript EventTarget.

func EventTargetOf

func EventTargetOf(v Value) *EventTarget

EventTargetOf returns a event target object.

func (*EventTarget) AddEventListener

func (e *EventTarget) AddEventListener(event string, cb Func) *EventTarget

AddEventListener adds callback for some event.

func (*EventTarget) JSValue

func (e *EventTarget) JSValue() Value

JSValue ...

func (*EventTarget) Register

func (e *EventTarget) Register(event string, cb Func) *EventTarget

Register ...

func (*EventTarget) Release

func (e *EventTarget) Release()

Release frees up resoruces if the object is not used anymore.

type Func

type Func = js.Func

Func alias syscall/js.Func

func FuncOf

func FuncOf(fn func(js.Value, []js.Value) interface{}) Func

FuncOf ...

type Value

type Value = js.Value

Value alias syscall/js.Value

func Call

func Call(fn string, args ...interface{}) Value

Call invoke a global function.

func Get

func Get(name string) Value

Get ...

func Global

func Global() Value

Global returns javascript global.

func New

func New(constructor string, args ...interface{}) Value

New returns a javascript object.

func ToJSUint8Array

func ToJSUint8Array(src []byte) Value

ToJSUint8Array copy go bytes to javascript uint8Array

func ValueOf

func ValueOf(x interface{}) Value

ValueOf ...

func Window

func Window() Value

Window ...