getExtension

getExtension() is used to gets the value of the extension.

Usage

Using Standard JavaScript:

// Create an instance of PhoneNumberUtil

const phoneUtil = require('libphonenumbers').PhoneNumberUtil.getInstance();

// Parse number with US country code and keep raw input

const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');

// Print the phone's extension

console.log(number.getExtension());

// null

Using ECMAScript (ES):

import libphonenumbers from 'libphonenumbers';

// Create an instance of PhoneNumberUtil

const phoneUtil = libphonenumbers.PhoneNumberUtil.getInstance();

// Parse number with US country code and keep raw input

const number = phoneUtil.parseAndKeepRawInput('202-456-2121', 'US');

// Print the phone's extension

console.log(number.getExtension());

// => null