go channel read/write and direction
tags: learning go programming
content
- a channel in go could be read-only or write-only
- a read-only or write-only channel is achieved with type casting
- read-only:
<-chan(value coming out from the channel) - write-only:
chan<-(value going into the channel)
- read-only:
func readChannel(ch <-chan int) {...}
func writeChannel(ch chan<- int) {...}- this read-only / write-only can also be seen as channel’s direction