47. Go - Channel Ranges

Can iterate over channel values from buffer list.


close()

// Closes the channel so channel does not expect any more values. still can read, but not receive.

// Should close a channel before ranging over it to avoid deadlock error.


Example:

package main

import "fmt"

func main() {
    channelOne := make(chan int)

    go func() {
        for i := 0; i < 50; i++ {
            channelOne <- i
        }
        close(channelOne)
    }()

    for i := range channelOne {
        fmt.Println(i)
    }
}

// using for range to iterate over a channel until it is closed.

// it keeps pulling values from the channel until the channel is closed, then range loop ends.

// channel is finally closed in the goroutine func after the 50 loop.


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