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URLSearchParams.has

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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

Syntax

var hasName = URLSearchParams.has(name)

Parameters

name
The name of the parameter to find.

Returns

A Boolean.

Example

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 compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 49 17 26 No 36 ?
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 49 49 17 26 36 ? ?

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/has