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.


string =; = string;


// Let an <a id="myAnchor" href="/en-US/docs/"> element be in the document
var anchor = document.getElementById("myAnchor");
var queryString =; // Returns:'?q=123'

// Further parsing:
let params = new URLSearchParams(queryString);
let q = parseInt(params.get("q"); // is the number 123


Specification Status Comment
HTML Living Standard
The definition of '' in that specification.
Living Standard Initial definition.

Browser compatibility

BCD tables only load in the browser

See also