mirror of
https://github.com/chubin/cheat.sheets
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27 lines
614 B
Plaintext
27 lines
614 B
Plaintext
// - A send to a nil channel blocks forever
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var c chan string
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c <- "Hello, World!"
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// fatal error: all goroutines are asleep - deadlock!
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// - A receive from a nil channel blocks forever
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var c chan string
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fmt.Println(<-c)
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// fatal error: all goroutines are asleep - deadlock!
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// - A send to a closed channel panics
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var c = make(chan string, 1)
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c <- "Hello, World!"
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close(c)
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c <- "Hello, Panic!"
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// panic: send on closed channel
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// - A receive from a closed channel returns the zero value immediately
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var c = make(chan int, 2)
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c <- 1
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c <- 2
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close(c)
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for i := 0; i < 3; i++ {
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fmt.Printf("%d ", <-c)
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}
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// 1 2 0
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