URLSearchParams: toString() method

Note: This feature is available in Web Workers.

The toString() method of the URLSearchParams interface returns a query string suitable for use in a URL.

Note: This method returns the query string without the question mark. This is different from Location.search, HTMLAnchorElement.search, and URL.search, which all include the question mark.

Syntax

js
toString()

Parameters

None.

Return value

A string, without the question mark. (Returns an empty string if no search parameters have been set.)

Examples

js
const url = new URL("https://example.com?foo=1&bar=2");
const params = new URLSearchParams(url.search);

// Add a second foo parameter.
params.append("foo", 4);
console.log(params.toString()); // Prints 'foo=1&bar=2&foo=4'

Specifications

Specification
URL Standard
# urlsearchparams-stringification-behavior

Browser compatibility

desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
Deno
Node.js
toString

See also