在此页

• 特性
• 方法
• 范例
• 规范
• 浏览器兼容性
• 相关话题

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。

KeyboardLayoutMap 接口的 Keyboard API is a map-like object with functions for retrieving the string associated with specific physical keys. A list of valid keys is found in the UI Events KeyboardEvent code Values 规范。

特性

KeyboardLayoutMap.entries 只读

Returns an array of a given object's own enumerable property [key, value] pairs, in the same order as that provided by a for...in loop (the difference being that a for-in loop enumerates properties in the prototype chain as well).

KeyboardLayoutMap.keys 只读

Returns a new Array Iterator object that contains the keys for each index in the array.

KeyboardLayoutMap.size 只读

Returns the number of elements in the KeyboardLayoutMap 对象。

KeyboardLayoutMap.values 只读

Returns a new Array Iterator object that contains the values for each index in the KeyboardLayoutMap 对象。

方法

KeyboardLayoutMap.forEach() 只读

Executes a provided function once for each element of KeyboardLayoutMap .

KeyboardLayoutMap.get()

Returns the element with the given key from the KeyboardLayoutMap 对象。

KeyboardLayoutMap.has()

Returns a boolean indicating whether the KeyboardLayoutMap object has an element with the specified key.

范例

The following example demonstrates how to get the location- or layout-specific string associated with the key that corresponds to the 'W' key on an English QWERTY keyboard.

var keyboard = navigator.keyboard;
keyboard.getLayoutMap()
.then(keyboardLayoutMap => {
  var upKey = keyboardLayoutMap.get('KeyW');
  window.alert('Press ' + upKey + ' to move up.');
})
					

规范

规范	状态	注释
Keyboard Map The definition of 'KeyboardLayoutMap' in that specification.	编者草案	初始定义。

浏览器兼容性

The compatibility table in 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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
KeyboardLayoutMap	Chrome 69	Edge 79	Firefox No	IE No	Opera 55	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android 48	Safari iOS No	Samsung Internet Android No
entries	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
forEach	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
get	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
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
keys	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
size	Chrome 69	Edge 79	Firefox No	IE No	Opera 56	Safari No	WebView Android No	Chrome Android No	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No
值	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

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

元数据

• 最后修改： Apr 16, 2020

相关话题

1. KeyboardLayoutMap
2. 特性

   1. entries
   2. keys
   3. size
   4. 值
3. 方法

   1. forEach()
   2. get()
   3. has()