Coding⏱️ 2 min read📅 2026-06-03

How to Fix: How can I add or update a query string parameter?

Update query string parameter using jQuery

Quick Answer: Use the $.param() function to update or add a query string parameter: $.param({ paramName: 'newValue' });

📋 Table of Contents

  1. How to Add or Update a Query String Parameter
  2. ✅ Example Code
  3. ✨ Wrapping Up

To add or update a query string parameter using JavaScript and jQuery, you can utilize the URLSearchParams API. This API provides an easy way to work with URL query strings.

How to Add or Update a Query String Parameter

  • Use the URLSearchParams API to parse the current query string.

Method 1: Adding a New Parameter

  1. Step 1: Get the current URL.
  2. Step 2: Parse the query string using URLSearchParams.
  3. Step 3: Add the new parameter to the parsed query string.
  4. Step 4: Construct a new URL with the updated query string.

Method 2: Updating an Existing Parameter

  1. Step 1: Get the current URL.
  2. Step 2: Parse the query string using URLSearchParams.
  3. Step 3: Update the existing parameter in the parsed query string.
  4. Step 4: Construct a new URL with the updated query string.

✅ Example Code

const url = 'https://example.com/path?a=1&b=2';
} const params = new URLSearchParams(url.split('?')[1]);
params.set('c', 3);
const updatedUrl = `https://example.com/path?${params.toString()}`;

✨ Wrapping Up

By utilizing the URLSearchParams API, you can easily add or update query string parameters in your JavaScript applications using jQuery.

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