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Is it possible to manually predict the sequence of goroutine execution in the Select statement in Go?

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Answer from AI

No, in Go it is not possible to manually predict or guarantee the sequence of goroutine execution in the select statement.

The select statement randomly chooses one of the ready channels to execute if multiple are ready at the same time. This is done to ensure fairness and prevent deadlocks.

Example:

select {
case <-ch1:
    fmt.Println("Received from ch1")
case <-ch2:
    fmt.Println("Received from ch2")
}

If both channels ch1 and ch2 are ready, Go will randomly select one of them, and it is impossible to predict which one.

Therefore, when designing programs with select, you should not rely on the order of selection; instead, ensure correct operation regardless of which case is chosen.