Range over channels

Context

The for range loop can iterate over values sent on a channel until the channel is closed. This is a clean way to receive all values.

Example

Send multiple values and use range to receive them.

Code example

package main

import "fmt"

func main() {
    ch := make(chan int, 3)
    ch <- 10
    ch <- 20
    ch <- 30
    close(ch)

    for v := range ch {
        fmt.Println(v)
    }
}

Output

10
20
30

Useful links

• Go spec: For range with channels
• Go by Example: Range over Channels