URLSearchParams: keys() method

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 keys() method of the URLSearchParams interface returns an iterator allowing iteration through all keys contained in this object. The keys are strings.

Syntax

js
keys()

Parameters

None.

Return value

Returns an iterator.

Examples

js
// Create a test URLSearchParams object
const searchParams = new URLSearchParams("key1=value1&key2=value2");

// Display the keys
for (const key of searchParams.keys()) {
  console.log(key);
}

The result is:

key1
key2

Specifications

Specification
URL Standard
# dom-urlsearchparams-urlsearchparams

Browser compatibility

BCD tables only load in the browser

See also

  • The URL interface.