Just some golang snipptes

go_routines_with_chan.go

package main

import (
    "log"
)

func main() {
    c := make(chan string)
    for i := 0; i < 10; i++ {
        go func(i int, c chan string) {
            log.Println(i)
            c <- ""
        }(i, c)
    }
    
    for i:= 0; i < 10; i++ {
        <- c
    }
}

go_routines_with_wait.go

package main

import (
    "log"
    "sync"
)

func main() {
    var wg sync.WaitGroup
    for i := 0; i < 10; i++ {
        wg.Add(1)
        go func(i int) {
            defer wg.Done()
            log.Println(i)
        }(i)
    }
    wg.Wait()
}