Golang program to create the unidirectional channel

Program/Source Code:

The source code to create a unidirectional channel is given below. The given program is compiled and executed successfully.

// Golang program to create the
// unidirectional channel

package main

import "fmt"

func main() {
	// Channel with send only.
	msg := make(chan<- string)

	go func() { msg <- "Hello World" }()

	// Below statement will generate an error because
	// here the only channel allows sending only.
	// fmt.Println(<-msg)

	fmt.Println("Program finished")
}

Output:

Program finished

Explanation:

In the above program, we declare the package main. The main package is used to tell the Go language compiler that the package must be compiled and produced the executable file. Here, we imported the fmt package to formatting related functions.

In the main() function, we created a unidirectional channel that allows only sending messages to the channel.