Javascript window.onbeforeunload功能

当用户在重定向前单击确定按钮时，如何调用删除功能，然后继续重定向

 $(document).ready({
window.onbeforeunload = confirmExit ;

 });

  function confirmExit()
 {
  var ele = document.getElementById ("localchanges") ;
 if (ele.value == "1")
   return "Changes are not saved. Discard changes?" ;
 }



function delete()
{

} 

---

我找到了这个，我们可以使用window.unload，如图所示。谢谢

$(document).ready({
window.onbeforeunload = confirmExit ;
 window.onunload = function() { return delete(); }
});

function confirmExit()
{
 var ele = document.getElementById ("localchanges") ;
 if (ele.value == "1")
 return "Changes are not saved. Discard changes?" ;
}



function delete()
{

} 

---

我找到了这个，我们可以使用window.unload，如图所示。谢谢

$(document).ready({
window.onbeforeunload = confirmExit ;
 window.onunload = function() { return delete(); }
});

function confirmExit()
{
 var ele = document.getElementById ("localchanges") ;
 if (ele.value == "1")
 return "Changes are not saved. Discard changes?" ;
}



function delete()
{

} 

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