This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The has() method of the StylePropertyMapReadOnly interface indicates whether the specified property is in the StylePropertyMapReadOnly object.
var boolean = StylePropertyMapReadOnly.has(property)
A boolean.
// TBD
| Specification | Status | Comment |
|---|---|---|
| CSS Typed OM Level 1 The definition of 'has()' in that specification. | Working Draft | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 66 | No | No | No | 53 | No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 66 | 66 | No | No | 53 | No | ? |
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/StylePropertyMapReadOnly/has