Which JavaScript object would you use to access and manipulate URL parameters?

The correct choice for accessing and manipulating URL parameters is the "URL" object, which is part of the web API and provides a structured way to work with URLs.

The URL constructor allows you to create an object representing a URL and provides properties such as searchParams, which you can use to easily get, set, and manipulate query parameters. For instance, you can use methods like get(), set(), and delete() on searchParams to handle the parameters effectively.

While the location object can provide information about the current URL and allows you to modify the entire URL, it doesn’t offer a straightforward way to manipulate just the query parameters. On the other hand, the document object primarily deals with web page content and does not provide direct access to URL parameters. The concept of a QueryString, while somewhat relevant, is generally more of a string representation of the parameters rather than a structured object to interact with.

Using the URL object is the most efficient method, as it encapsulates the functionality needed to seamlessly interact and manage URL search parameters.