35 lines
609 B
Go
35 lines
609 B
Go
// select lets you wait on multiple channel operations
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package main
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import (
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"fmt"
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"time"
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)
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func main() {
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// select across two channels
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c1 := make(chan string)
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c2 := make(chan string)
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// each channel will receive a value after some amount of time, to simulate
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go func() {
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time.Sleep(1 * time.Second)
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c1 <- "one"
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}()
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go func() {
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time.Sleep(2 * time.Second)
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c2 <- "two"
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}()
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// use select to await both of these values simultaneously
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for i := 0; i < 2; i++ {
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select {
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case msg1 := <-c1:
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fmt.Println("received", msg1)
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case msg2 := <-c2:
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fmt.Println("received", msg2)
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}
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}
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}
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