MediaKeyStatusMap.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 property of the MediaKeyStatusMap interface returns a Boolean asserting whether a value has been associated with the given key.
Syntax
JavaScript
Copy Code
var boolean = mediaKeyStatusMap(key)
Parameters
- key
- The key whose value you want returned
Returns
A Boolean.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Encrypted Media Extensions | Working Draft | Initial definition. |
Browser Compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 42.0 | ? | ? | 29 | ? |
| Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | No support | 43.0 | ? | ? | ? | 29 | ? | 42.0 |
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/mediakeystatusmap/has