URL is not defined in node.js

Question

let url = new URL("https://stackoverflow.com/questions/ask") 

It will get an error like this:

URL is not defined

Actually, in modern browsers, it works well. However, if you run it in the node.js environment, you will get an error like that.

I researched the documentation, it says it's a global class:

Browser-compatible URL class, implemented by following the WHATWG URL Standard. Examples of parsed URLs may be found in the Standard itself. The URL class is also available on the global object.

So, what's the problem?

Answer 1

Try to add this line:

var URL = require('url').URL; 

The full example is here:

var URL = require('url').URL; var myURL = new URL('http://www.example.com/foo?bar=1#main');  console.log(myURL.host);  // prints 'www.example.com' 

All of those are from this amazing tutorial.