MIXIN & PRIMITIVE

settings_applicationsWindowEventHandlers

MIXIN & PRIMITIVE

Editing
  • settings_backup_restore
  • bug_report

Event handleronbeforeunload

구문

형식
window.addEventListener("beforeunload", function() { });

명세

typebeforeunload
bubblesno
cancelableno
targetwindow
handleryes

지원 웹브라우저