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CompositionEvent
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The DOM CompositionEvent represents events that occur due to the user indirectly entering text.
This interface also inherits properties of its parent, UIEvent, and its ancestor — Event.
CompositionEvent.data Read only
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Returns the characters generated by the input method that raised the event; its varies depending on the type of event that generated the CompositionEvent object.
CompositionEvent.locale Read only
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Returns the locale of the current input method (for example, the keyboard layout locale if the composition is associated with an Input method editor).