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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

KeyboardEvent.isComposing 只读特性返回 布尔 value indicating if the event is fired within a composition session, i.e. after compositionstart and before compositionend .

句法

var bool = event.isComposing;
					

范例

var kbdEvent = new KeyboardEvent("syntheticKey", false);
console.log(kbdEvent.isComposing); // return false
					

规范

规范	状态	注释
UI Events The definition of 'KeyboardEvent.prototype.isComposing' in that specification.	工作草案
DOM (文档对象模型) 3 级事件规范 The definition of 'KeyboardEvent.prototype.isComposing' in that specification.	过时	初始定义。

浏览器兼容性

The compatibility table on 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
isComposing	Chrome 56	Edge ≤79	Firefox 31	IE No	Opera 43	Safari 10.1	WebView Android 56	Chrome Android 56	Firefox Android 31	Opera Android 43	Safari iOS 10.3	Samsung Internet Android 6.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• compositionstart and compositionend
• KeyboardEvent

元数据

• 最后修改： Aug 5, 2020

相关话题

1. KeyboardEvent
2. 构造函数

   1. KeyboardEvent()
3. 特性

   1. altKey
   2. charCode
   3. code
   4. ctrlKey
   5. isComposing
   6. key
   7. keyCode
   8. keyIdentifier
   9. location
   10. metaKey
   11. repeat
   12. shiftKey
   13. which
4. 方法

   1. getModifierState()
   2. initKeyboardEvent()
   3. initKeyEvent()
5. 继承：

   1. UIEvent
   2. 事件
6. DOM 事件相关页面

   1. CompositionEvent
   2. 事件
   3. EventListener
   4. EventTarget
   5. FocusEvent
   6. InputEvent
   7. MouseEvent
   8. MouseScrollEvent
   9. MouseWheelEvent
   10. MutationEvent
   11. ProgressEvent
   12. UIEvent
   13. WheelEvent