Node.js socket.unref() Method

The socket.unref() method is an inbuilt application programming interface of class Socket within dgram module which is used to allow the process to exit even if the socket is still listening.

Syntax:

const socket.unref()

Parameters: This method does not accept any parameters.

Return Value: This method returnsthe reference of the particular socket containing all the information in it.

Example 1: Filename: index.js

Output:

[ 'message' ]
UDP String: Hello

Example 2: Filename: index.js

Run the index.js file using the following command:

node index.js

Output:

server listening 0.0.0.0:1234
[ 'message', 'listening' ]
UDP String: Hello

Reference: https://nodejs.org/dist/latest-v12.x/docs/api/dgram.html#dgram_socket_unref