Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The CharacterBoundsUpdateEvent() constructor returns a new CharacterBoundsUpdateEvent object.
new CharacterBoundsUpdateEvent(type)
new CharacterBoundsUpdateEvent(type, options)typeA string representing the type of the event. Possible values: "characterboundsupdate".
options OptionalAn optional object with the following properties:
rangeStartA number to set the offset of the first character within the editable text region which this event applies to.
rangeEndA number to set the offset of the last character within the editable text region which this event applies to.
CharacterBoundsUpdateEvent interface it belongs to.