Node.js process.debugPort Property

The process.debugPort property is an inbuilt application programming interface of the process module which is used to get the debugging port used by the debugger if enabled.

Syntax:

process.debugPort

Return Value: This property returns an integer value that specifies the debugging port used by the debugger if enabled.

Below examples illustrate the use of process.debugPort property in Node.js:

Example 1:

// Node.js program to demonstrate the
// process.debugPort property

// Include process module
const process = require('process');

// Printing process.debugPort
console.log("debug port is " + process.debugPort);

Output:

debug port is 9229

Example 2:

// Node.js program to demonstrate the
// process.debugPort property

// Include process module
const process = require('process');

// Printing process.debugPort property value
var debug_port = process.debugPort;

// Check whether debug port is defined
if(debug_port != undefined){
    console.log("debug port is defined");
    console.log("debug port is " + debug_port);
}else{
    console.log("debug port is not defined");
}

Output:

debug port is defined
debug port is 9229

Note: The above program will compile and run by using the node filename.js command.

Reference: https://nodejs.org/api/process.html#process_process_debugport