How does make(chan bool) behave differently from make(chan bool, 1)?

Question

My question arises from trying to read a channel, if I can, or write it, if I can, using a select statement.

I know that channels specified like m

Answer 1

An unbuffered channel means that read and writes from and to the channel are blocking.

In a select statement:

• the read would work if some other goroutine was currently blocked in writing to the channel
• the write would work if some other goroutine was currently blocked in reading to the channel
• otherwise the default case is executed, which happens in your case A.