Golang golang-functionclosure (snippet)

Go programming example 'golang-functionclosure'

golang-functionclosure

Golang beginners example: golang-functionclosure

package main

import (
    "fmt"
    "time"
)

func initTimeSeq() func() int {
    t := time.Now().UnixNano()
    return func() int {
        return int(time.Now().UnixNano() - t)
    }
}

func main() {
    timeSince := initTimeSeq()

    fmt.Println(timeSince())

    fmt.Println(timeSince())

    time.Sleep(1 * time.Second)

    fmt.Println(timeSince())

    time.Sleep(120 * time.Millisecond)

    fmt.Println(timeSince())

    timeSince = initTimeSeq()

    time.Sleep(1300 * time.Millisecond)

    fmt.Println(timeSince())

    fmt.Println(timeSince())

    fmt.Println(timeSince())
}

Useful links

• Learn Go: https://golangr.com
• Download Go: https://golang.org