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Check if changes saved before unload

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离开以前
离开以前 2021-01-22 10:41

I have the following JavaScript

EDIT: included assignments for changesSaved

 var changesSaved = true;

    $(document).ready(function ()
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2条回答
  • 悲哀的现实
    2021-01-22 10:58 
    <body onbeforeunload="return bye()">

function bye(){
    if(changesSaved) {
        return "You havent saved your changes."
    }
}

    This is how I do it.

    or in pure JavaScript:

    window.onbeforeunload = function() {
    if (changesSaved) {
        return "You haven't saved your changes.";
    }
};
    0 讨论(0)
  • 小鲜肉
    2021-01-22 11:10 
    window.onbeforeunload = function () {
     var changesSaved = confirm("You havent saved your changes. Are you sure you want to leave the page?");
    if (changesSaved) {
        return true;
    } else {
        return false;
    }
    0 讨论(0)
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