url search params

@nick/is/url-search-params

isURLSearchParams

Signature

function isURLSearchParams(it: unknown): it is URLSearchParams;

Checks if a value is a URLSearchParams object.

This function is useful for checking if a value is an instance of the native URLSearchParams class, without leaning on the instanceof operator (which known to be unreliable in certain environments and across different realms).

Parameters

Name	Info
it	The value to check.

Returns

true if the value is a URLSearchParams object, false otherwise.

Category

Web APIs

Examples

import { isURLSearchParams } from "jsr:@nick/is/url-search-params";

console.log(isURLSearchParams(new URLSearchParams())); // true
console.log(isURLSearchParams(new URLSearchParams("a=1&b=2"))); // true
console.log(isURLSearchParams(new URL("https://foobar.com?a=1").searchParams)); // true
console.log(isURLSearchParams({})); // false
console.log(isURLSearchParams(new URL("data:"))); // false