当用户尝试使用f5，ctrl + 5使用jquery脚本刷新浏览器页面时，警报无效

当用户尝试在浏览器中引用选项卡时，我需要向用户显示警报“它应该提醒”如果你提醒这个页面你会丢失数据“但是我使用jquery仍然无法正常工作。

  $(window).on('beforeunload', function(){ alert("Don't refresh you will loose your all data?"); //or confirm("are you sure want to refresh this page !"); });  

Answer 1

试着回来吧

注意：并非所有浏览器都支持此function

  $(window).on("beforeunload", function (event) { return "Are you sure you want to leave?"; }); 

Answer 2

它会是这样的：

  $(window).on('beforeunload', function(){ return confirm("are you sure want to refresh this page !"); }); 

Answer 3

绑定beforeunload事件：

  $(window).bind("beforeunload",function(){ return confirm("Do you want to refresh this page?"); }); 

Answer 4

试试这个：