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Node | URL.hostname API
  • Last Updated : 23 Feb, 2021

The url.hostname is an inbuilt application programming interface of class URL with in url module which is used to get and set the hostname portion of the URL. The key difference between url.host and url.hostname is that url.hostname does not include the port.
Syntax: 
 

const url.hostname

Return value: It gets and sets the hostname portion of the URL.
Below programs illustrate the use of url.hostname Method:
Example 1: 
 

javascript




// node program to demonstrate the
// url.hostname API as Setter
  
//importing the module 'url'
const http = require('url');
  
// creating and initializing myURL
const myURL = new URL('https://example.com:80/foo#ram');
  
// Display href value of myURL before change
console.log("Before Change");
console.log(myURL.href);
  
// assinging hostname portion
// using hostname
console.log();
myURL.hostname = 'example.org';
  
// Display href value of myURL after change
console.log("After Change");
console.log(myURL.href);

Output
 



Example 2: 
 

javascript




// node program to demonstrate the
// url.hostname API as Getter
 
//importing the module 'url'
const http = require('url');
 
// creating and initializing myURL
const myURL = new URL('https://example.org/foo#ram');
 
// getting the hostname portion
// using hostname
const hostname = myURL.hostname;
 
// Display hostname value
console.log(hostname);

Output: 
 

NOTE: The above program will compile and run by using the node myapp.js command. 
Reference: 
https://nodejs.org/dist/latest-v10.x/docs/api/url.html#url_url_host
 

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