array-method

README

Array Method Package

This package provides convenient methods for arrays and slices in Go, inspired by JavaScript's Array methods. It allows for easy operations such as filtering, mapping, searching, and more.

Installation

To use this package, install it with the following command:

go get github.com/hiroky1983/array-method/array

Usage

Below are examples of how to use the main features of this package.

Filter

Extract elements from a slice that meet a condition.

import (
    "github.com/hiroky1983/array-method/array"
)

nums := []int{1, 2, 3, 4, 5}
evens := array.Filter(nums, func(n int) bool {
    return n%2 == 0
})
// evens will be [2, 4]

Map

Apply a function to each element of a slice to create a new slice.

people := []Person{
    {"Alice", 25},
    {"Bob", 30},
}
names := array.Map(people, func(p Person) string {
    return p.Name
})
// names will be ["Alice", "Bob"]

Find

Find the first element in a slice that meets a condition.

person := array.Find(people, func(p Person) bool {
    return p.Name == "Alice"
})
// person will be &{Alice 25}

FindIndex

Find the index of the first element in a slice that meets a condition.

index := array.FindIndex(people, func(p Person) bool {
    return p.Name == "Bob"
})
// index will be 1

ForEach

Perform an action for each element in a slice.

array.ForEach(people, func(p Person) {
    fmt.Println(p.Name)
})
// Output: Alice Bob

Reduce

Reduce a slice to a single value.

result := array.Reduce(nums, func(prev int, current int) int {
    return prev + current
}, 0)
// result will be 15

Some

Check if at least one element in a slice meets a condition.

result := array.Some(nums, func(n int) bool {
    return n%2 == 0
})
// result will be true