URLSearchParams.has() - Web APIs 编辑

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

Note:

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

Browser compatibility

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