javascript 如何防止使用 jQuery 卸载页面？
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How can I prevent a page unload with jQuery?
提问by tatiana_c
In my program, if a user tries to leave a page, he'll receive a dialog box asking if he is sure he wants to leave.
在我的程序中，如果用户试图离开一个页面，他会收到一个对话框，询问他是否确定要离开。
How should I implement the 'cancel' option if the user chooses not to leave the page?
如果用户选择不离开页面，我应该如何实现“取消”选项？
Source javascript code:
源代码：
$(window).unload(function(){
var c= confirm ("Are you sure?");
if (c){
alert("Thanks. Good luck!");
}
else{
????
}
});
回答by sandeep
window.onbeforeunload = function() {
return 'You have unsaved changes!';
}
many question about this in stackoverflow How can I override the OnBeforeUnload dialog and replace it with my own?
stackoverflow 中有很多关于此的问题 如何覆盖 OnBeforeUnload 对话框并将其替换为我自己的？
回答by user3134411
jQuery(window).on('beforeunload',function(){
var value = navigateAway(isDirty);
if(value=="changed")`enter code here`
{
if(jQuery("#saveCheck").val()=="false")
{
return "<?php echo JText::_('OVR_WANT_TO_LEAVE');?>";
}
}
});
