The property is a search string, also called a query string, that is USVString containing a '?' followed by the parameters of the URL.

Modern browsers provide URLSearchParams and URL.searchParams to make it easy to parse out the parameters from the querystring.


// Getter
string =;
// Setter = string;


// An <a id="myAnchor" href="/en-US/docs/HTMLAnchorElement?q=123"> element is in the document
const anchor = document.getElementById("myAnchor");; // returns '?q=123'

Advanced parsing using URLSearchParams

Alternatively, URLSearchParams can be used:

let params = new URLSearchParams(queryString);
let q = parseInt(params.get("q"); // returns the number 123


Browser compatibility

BCD tables only load in the browser

See also