KeyboardEvent: isComposing property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The KeyboardEvent.isComposing read-only property returns a boolean value indicating if the event is fired within a composition session, i.e., after compositionstart and before compositionend.

Value

A boolean.

Examples

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

Specifications

Specification
UI Events
# dom-keyboardevent-iscomposing

Browser compatibility

See also