URLSearchParams.has()
This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The has() method of the URLSearchParams interface returns a Boolean that indicates whether a parameter with the specified name exists.
Syntax
JavaScript
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var hasName = URLSearchParams.has(name)
Parameters
- name
- The name of the parameter to find.
Returns
A Boolean.
Example
JavaScript
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let url = new URL('https://example.com?foo=1&bar=2'); let params = new URLSearchParams(url.search.slice(1)); params.has('bar') === true; //true
Specifications
| Specification | Status | Comment |
|---|---|---|
| URL The definition of 'has()' in that specification. |
Living Standard | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 49.0 |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | 49.0 | 49.0 |
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/urlsearchparams/has