Channels are typed conduits for safe communication between goroutines using send and receive operations.
Channels are typed conduits that let goroutines communicate by sending and receiving values, blocking until both sides are ready. Use make to create a channel, the <- operator to send or receive, and close to signal completion.
ch := make(chan int)
// Sender (in a goroutine)
ch <- 42
// Receiver
value := <-ch
// Close when done
close(ch)
A channel is like a pipe connecting two workers so they can pass items safely without crashing each other. One worker puts an item in the pipe, and the other waits until it can take it out. This keeps your program organized and prevents data races when multiple tasks run at the same time.