URLSearchParams: keys() method

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

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android
keys 49 17 44 36 10.1 49 44 36 10.3 5.0 49

See also

  • The URL interface.

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https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/keys