Javascript: Get Query Parameters from URL

Extracting query parameters from a URL is a common task in web development, especially for handling user inputs, filtering data, and implementing navigation logic. This snippet demonstrates how to parse query parameters from a URL in JavaScript using the URL and URLSearchParams objects.

In this example, we create a new URL object by passing the URL string to its constructor. The URL object provides various properties and methods for accessing different parts of the URL, including the search parameters. The searchParams property returns a URLSearchParams object, which allows for easy manipulation and retrieval of query parameters.

The URLSearchParams object provides methods such as get, getAll, has, keys, and entries to interact with the query parameters. In this snippet, we use the get method to retrieve the value of a specific query parameter by its name. This approach is straightforward and efficient, making it ideal for handling URLs in web applications.

Extracting query parameters is essential for various tasks, such as processing user inputs from forms, filtering data based on user selections, implementing search functionality, and more. Understanding how to use the URL and URLSearchParams objects can help you efficiently manage and utilize query parameters in your applications.

The URL and URLSearchParams objects are part of the modern JavaScript standard and provide a robust and consistent way to work with URLs. These objects simplify the process of parsing and handling query parameters, making your code more readable and maintainable.