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
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
keys | Chrome Full support 49 | Edge Full support 17 | Firefox Full support 44 | IE No support No | Opera Full support 36 | Safari Full support Yes | WebView Android Full support 49 | Chrome Android Full support 49 | Firefox Android Full support 44 | Opera Android Full support 36 | Safari iOS Full support Yes | Samsung Internet Android Full support 5.0 |
Legend
- Full support
- Full support
- No support
- No support
See also
- The
URL
interface.