How do I use advanced select statements in Go?

How do I use advanced select statements in Go?

In Go, the select statement is used to wait on multiple channel operations. You can use it to handle multiple goroutines.

Can you give me an example of using select with multiple channels?

Sure! Here's a simple example:

ch1 := make(chan string)
ch2 := make(chan string)

go func() { ch1 <- "from ch1" }()

go func() { ch2 <- "from ch2" }()

select {
case msg1 := <-ch1:
    fmt.Println(msg1)
case msg2 := <-ch2:
    fmt.Println(msg2)
}

What happens if both channels send a message at the same time?

If both channels are ready, the select statement will choose one at random to proceed with. This ensures fairness.

Can I use a default case in select?

Yes, you can use a default case in a select statement. It will execute if none of the channels are ready.