A channel is a typed conduit for sending and receiving values between goroutines. It helps coordinate and synchronize concurrent work.

• Pass data safely between goroutines.
• Avoid complicated shared-memory locking.

package main
 
import "fmt"
 
func main() {
    ch := make(chan int)
 
    go func() {
        ch <- 10 // send
    }()
 
    v := <-ch // receive
    fmt.Println(v)
}

• conduit /ˈkɑːnduɪt/: “ống dẫn”/kênh truyền
• coordinate /koʊˈɔːrdɪneɪt/: điều phối
• synchronize /ˈsɪŋkrənaɪz/: đồng bộ
• shared memory /ʃerd ˈmeməri/: bộ nhớ dùng chung
• locking /ˈlɑːkɪŋ/: khóa (để tránh race)