URLSearchParams.has()

The has() method of the URLSearchParams interface returns a Boolean that indicates whether a parameter with the specified name exists.

Note: This feature is available in Web Workers.

Syntax

var hasName = URLSearchParams.has(name)

Parameters

name
The name of the parameter to find.

Return value

A Boolean.

Examples

let url = new URL('https://example.com?foo=1&bar=2');
let params = new URLSearchParams(url.search.slice(1));

params.has('bar') === true; //true

Specifications

Specification Status Comment
URL
The definition of 'has()' in that specification.
Living Standard Initial definition.

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
hasChrome Full support 49Edge Full support 17Firefox Full support 29IE No support NoOpera Full support 36Safari Full support YesWebView Android Full support 49Chrome Android Full support 49Firefox Android Full support 29Opera Android Full support 36Safari iOS Full support YesSamsung Internet Android Full support 5.0

Legend

Full support
Full support
No support
No support