这是
实验性技术
检查
浏览器兼容性表格
要小心谨慎在生产中使用这之前。
has()
方法在
KeyboardLayoutMap
interface returns a boolean indicating whether the object has an element with the specified key.
A list of valid keys is found in the
UI Events KeyboardEvent code Values
spec.
var aBoolean = KeyboardLayoutMap.has(key)
The key of an element to search for in the map.
A
布尔
indicating whether the specifed key was found.
| 规范 | 状态 | 注释 |
|---|---|---|
|
Keyboard Map
The definition of 'has()' in that specification. |
编者草案 | 初始定义。 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
has
|
Chrome 69 | Edge 79 | Firefox No | IE No | Opera 56 | Safari No | WebView Android No | Chrome Android No | Firefox Android No | Opera Android 48 | Safari iOS No | Samsung Internet Android No |
完整支持
不支持
实验。期望将来行为有所改变。