Javascript - Confirmation when leaving page

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I\'m trying to implement a basic popup window that asks the user if they really want to leave a page, similar to what would happen on this site if I tried to close the windo

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离开以前

2021-01-14 18:13

window .unload function will help us to execute some javascript while closing the browser or redirecting to any other page. resources: http://api.jquery.com/unload/

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一生所求

2021-01-14 18:15

At the head:

<head>
...
<script type="text/javascript">
var disabledConfirm_exit=false;
</script>
</head>

In the two links allowed to leave, you can add

onclick="disabledConfirm_exit=true;"

And inside the confirm_exit

function confirm_exit(e) {
    if(disabledConfirm_exit) return;
    if(!e) e = window.event;

    e.cancelBubble = true;
    e.returnValue = 'Are you sure you want to leave?'; 

    if (e.stopPropagation) {
        e.stopPropagation();
        e.preventDefault();
    }
}

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