Approach 2 : Using Pure JavaScript
- In this approach, Create a function queryString(url) that extracts and decodes query parameters using pure JavaScript.
- Split the URL, parse query string, and store key-value pairs.
- Return the parameters object.
Example: This example shows the use of the above-explained approach.
Javascript
function queryString(url) { const str1 = url.split('?')[1]; const params = {}; if (str1) { const pairs = str1.split('&'); for (const pair of pairs) { const [key, value] = pair.split('='); params[key] = decodeURIComponent(value .replace(/\+/g, ' ')); } } return params; } const urlStr = 'http://example.com/path?param1=w3wiki¶m2=Noida'; const result = queryString(urlStr); console.log(result); |
Output
{ param1: 'w3wiki', param2: 'Noida' }
JavaScript Program to get Query String Values
Getting query string values in JavaScript refers to extracting parameters from a URL after the “?” symbol. It allows developers to capture user input or state information passed through URLs for dynamic web content and processing within a web application.
Table of Content
- Using URLSearchParams
- Using Pure JavaScript