Handle refresh page event with javascript

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Is it possible to use javascript to handle the event of refreshing page? What i want is get notice if user do one of these behaviours:

refresh page by pressing

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情歌与酒

2020-12-03 01:58

The closest you could get is the window.onbeforeunload event:

window.onbeforeunload = function (e) {
    var e = e || window.event;

    // For IE and Firefox
    if (e) {
        e.returnValue = 'Leaving the page';
    }

    // For Safari
    return 'Leaving the page';
};

It is important to note that you need to return a string from this function.

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情深已故

2020-12-03 02:02

You don't want the refresh, you want the onbeforeunload event.

http://msdn.microsoft.com/en-us/library/ms536907(VS.85).aspx

Sample code from article

<HTML>
<head>
<script>
function closeIt()
{
  return "Any string value here forces a dialog box to \n" + 
         "appear before closing the window.";
}
window.onbeforeunload = closeIt;
</script>
</head>
<body>
  <a href="http://www.microsoft.com">Click here to navigate to 
      www.microsoft.com</a>
</body>
</html>

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