在此页

• 句法
• 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。

get() 方法在 KeyboardLayoutMap interface returns the element with the given key. A list of valid keys is found in the UI Events KeyboardEvent code Values spec.

句法

var value = KeyboardLayoutMap.get(key)
					

参数

key

The key of the item to return from the map.

返回值

The value of 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 'get()' 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
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

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： Mar 18, 2019

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()