Kuidas tekitada paanikat, töötades kanali with? Mida juhtub nil-kanali ja suletud kanali operatsioonide ajal?

In Go, panic occurs in the following cases when working with channels:

• Sending a value to a closed channel (chan <- value) causes a panic.
• Closing an already closed channel (close(chan)) causes a panic.

Regarding nil channels:

• Send and receive operations on a nil channel block forever (deadlock), but do not cause panic.

Example:

var ch chan int // nil channel

// <-ch // blocks forever
// ch <- 1 // blocks forever

ch = make(chan int)
close(ch)

// ch <- 1 // panic: send on closed channel

close(ch) // panic: close of already closed channel