32 lines
834 B
Go
32 lines
834 B
Go
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package selectdefault
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import "fmt"
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func SelectDefault() {
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msgs := make(chan string)
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signals := make(chan string)
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select {
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case val := <-msgs:
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fmt.Println("Received", val)
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default:
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fmt.Println("`default` can be used to prevent blocking when there's nothing to receive from a channel")
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}
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select {
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case msgs <- "hello":
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fmt.Println("Sent hello")
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default:
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fmt.Println("`default` can be used to prevent blocking when we send something to an unbuffered channel but there's nobody to receive")
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}
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select {
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case val := <-msgs:
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fmt.Println("Received something from msgs", val)
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case val := <-signals:
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fmt.Println("Received something from signals", val)
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default:
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fmt.Println("`default` can be used to prevent blocking when there's nothing to receive or if its not possible to send across multiple channels")
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}
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}
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