Why URL parsing matters in Node.js - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the URL class from the 'url' module.

Node.js

const { [1] } = require('url');

Drag options to blanks, or click blank then click option'

AURL

Bparse

Cformat

Dresolve

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'parse' instead of 'URL' which is a function, not a class.

Trying to import the whole module without destructuring.

The URL class is used to parse and manipulate URLs in Node.js.

2fill in blank

medium

Complete the code to create a new URL object from a string.

Node.js

const myUrl = new URL([1]);

Drag options to blanks, or click blank then click option'

A'http://example.com/path?name=abc#section'

Bhttp://example.com

CurlString

DurlObject

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a variable name instead of a string literal.

Omitting quotes around the URL string.

The URL constructor expects a string representing the full URL.

3fill in blank

hard

Fix the error in accessing the hostname property of the URL object.

Node.js

console.log(myUrl.[1]);

Drag options to blanks, or click blank then click option'

Ahost

Borigin

Chref

Dhostname

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'host' which includes the port number.

Using 'href' which returns the full URL string.

The hostname property returns only the domain name without port.

4fill in blank

hard

Fill both blanks to extract the pathname and search parameters from the URL.

Node.js

const path = myUrl.[1];
const params = myUrl.[2];

Drag options to blanks, or click blank then click option'

Apathname

BsearchParams

Csearch

Dhash

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'search' instead of 'searchParams' which is a string, not an object.

Confusing 'hash' with query parameters.

pathname gives the path part of the URL, and searchParams provides an easy way to work with query parameters.

5fill in blank

hard

Fill all three blanks to add a new query parameter and get the full updated URL string.

Node.js

myUrl.[1].append('[2]', '[3]');
console.log(myUrl.href);

Drag options to blanks, or click blank then click option'

AsearchParams

Buser

C123

Dparams

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'params' instead of 'searchParams'.

Confusing the key and value order in append.

Use searchParams.append to add a new query parameter. Then href shows the full URL string with the new parameter.