URL: searchParams property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Note: This feature is available in Web Workers.

The searchParams read-only property of the URL interface returns a URLSearchParams object allowing access to the GET decoded query arguments contained in the URL.

Value

A URLSearchParams object.

Examples

Basic usage

js
const params = new URL("https://example.com/?name=Jonathan%20Smith&age=18")
  .searchParams;
const name = params.get("name");
const age = parseInt(params.get("age"));

console.log(`name: ${name}`); // name: Jonathan Smith
console.log(`age: ${age}`); // age: 18

The searchParams property exposes the URL.search string as a URLSearchParams object. When updating this URLSearchParams, the URL's search is updated with its serialization. However, URL.search encodes a subset of characters that URLSearchParams does, and encodes spaces as %20 instead of +. This may cause some surprising interactions—if you update searchParams, even with the same values, the URL may be serialized differently.

js
const url = new URL("https://example.com/?a=b ~");
console.log(url.href); // "https://example.com/?a=b%20~"
console.log(url.searchParams.toString()); // "a=b+%7E"
// This should be a no-op, but it changes the URL's query to the
// serialization of its searchParams
url.searchParams.sort();
console.log(url.href); // "https://example.com/?a=b+%7E"

const url2 = new URL("https://example.com?search=1234&param=my%20param");
console.log(url2.search); // "?search=1234&param=my%20param"
url2.searchParams.delete("search");
console.log(url2.search); // "?param=my+param"

Specifications

Specification
URL
# dom-url-searchparams

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
searchParams

Legend

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Full support
Full support
Partial support
Partial support
Has more compatibility info.