many methods have been tried on the Internet. Is there any complete code that can be posted? Thank you!
many methods have been tried on the Internet. Is there any complete code that can be posted? Thank you!
//
window.onbeforeunload = function (event) {
var event = event || window.event;
if (event) {
event.returnValue = "";
}
return '?';
}at present, it seems that this method can only be used, as long as your page has been manipulated, such as text box editing. It will trigger a reminder, but the prompt can only be pre-set by the browser and you cannot change it. For example, 'are you sure you want to close the window' above is of no use.
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