/mdn-git/developer.mozilla.org/en-US/docs/Web/API/EditContextEditContext
attachedElements characterBounds characterBoundsRangeStart characterboundsupdate_event compositionend_event compositionstart_event EditContext selectionEnd selectionStart text textformatupdate_event textupdate_event updateCharacterBounds updateControlBounds updateSelection updateSelectionBounds updateText
/mdn-git/developer.mozilla.org/en-US/docs/Web/API/EditContext/textformatupdate_eventtextformatupdate_event