How to call a function before leaving page with Javascript

Question

I would like to execute a function before leaving page without showing a confirmation popup with Javascript only. I\'ve tried with the code below but it did

Answer 1

Please try below simple code -

Jquery Code Example -

$(window).bind('beforeunload', function(){
  Func_ToInsert_Record();
  Alert('Thanks And Bye!');
});

Javascript Code Example -

// Anonymous function 
window.onbeforeunload = function(event) {
  var message = '';
  if (window.event) {
    console.log(window.event);
    console.log(event.currentTarget.performance);
    console.log(event.currentTarget.performance.navigation);
    console.log(event.currentTarget.performance.navigation.type);

  } 

  event = event || window.event;
  event.preventDefault = true;
  event.cancelBubble = true;
  event.returnValue = message;
}