What are channels and how do they work?

Channels are Go's way of communication between goroutines: • Typed conduits for passing data • Synchronous by default (unbuffered) • Can be buffered with capacity • Support send (<-) and receive operations • Can be closed to signal completion Types: • Unbuffered: ch := make(chan int) • Buffered: ch := make(chan int, 10) Operations: • Send: ch <- value • Receive: value := <-ch • Close: close(ch)