URLSearchParams.keys()

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

Note: This method is available in Web Workers.

Syntax

searchParams.keys();

Parameters

None.

Return value

Returns an iterator.

Examples

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

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

The result is:

key1
key2

Specifications

Specification Status Comment
URL
The definition of 'keys() (see "iterable")' in that specification.
Living Standard Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
keysChrome Full support 49Edge Full support 17Firefox Full support 44IE No support NoOpera Full support 36Safari Full support YesWebView Android Full support 49Chrome Android Full support 49Firefox Android Full support 44Opera Android Full support 36Safari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support
No support  
No support

See also

  • The URL interface.