The InputEvent.isComposing read-only property returns a Boolean value indicating if the event is fired after compositionstart and before compositionend.
var bool = event.isComposing;
var inputEvent = new InputEvent("syntheticInput", false);
console.log(inputEvent.isComposing); // return false
| Specification | Status | Comment |
|---|---|---|
| Document Object Model (DOM) Level 3 Events Specification The definition of 'InputEvent.isComposing' in that specification. | Obsolete | Initial definition. |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | No support | 31.0 (31.0) | No support | No support | No support |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | No support | 31.0 (31.0) | No support | No support | No support |
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https://developer.mozilla.org/en-US/docs/Web/API/InputEvent/isComposing