WaitGroup - Golang tutorial

https://tutorialedge.net/golang/go-waitgroup-tutorial/

When you have a long time job to run in your program

But you need to wait for the result to printout it

--> the best way is to use Waitgroup

package main

import (

"fmt"

"sync"

)

func myFunc(waitgroup *sync.WaitGroup) {

fmt.Println("Inside my goroutine")

waitgroup.Done()

}

func main() {

fmt.Println("Hello World")

var waitgroup sync.WaitGroup

waitgroup.Add(1)

go myFunc(&waitgroup)

waitgroup.Wait()

fmt.Println("Finished Execution")

}

You can use anonymous function

package main

import (

"fmt"

"sync"

)

func main() {

fmt.Println("Hello World")

var waitgroup sync.WaitGroup

waitgroup.Add(1)

go func() {

fmt.Println("Inside my goroutine")

waitgroup.Done()

}()

waitgroup.Wait()

fmt.Println("Finished Execution")

}

If your anonymous function need param input

go func(url string) {
  fmt.Println(url)
}(url)