javascript - html onresizeend event, or equivalent way to detect end of resize

I'm trying to detect when the onresize event ends in a browser. If I use the onresize event, in Firefox it seems to be fired only once, after the resize event ends, which is exactly what I want. But if I try in IE, the onresize event gets fired many times during the resize.

I also try the onresizeend event, advertised in MSDN. But it does not seem to get fired at all, neither in Firefox, nor in IE. I use the following code:

<html>
    <head>
        <script>
        <!--
        function doLog(message)
        {
            document.getElementById("log").innerHTML += "<br/>" + message;
        }
        
        function doResize()
        {
            doLog("plain resize");
        }

        function doResizeEnd()
        {
            doLog("resize end");
        }
        -->
        </script>
        <style>
        <!--
        #log {
            width: 400px;
            height: 600px;
            overflow: auto;
            border: 1px solid black;
        }
        -->
        </style>
    </head>
    <body onresize="doResize();" onresizeend="doResizeEnd();">
        <div id="log"/>
    </body>
</html>

Any ideas why this does not work? Maybe the onresizeend event is not supported? In this case, how can I detect when the resize event has ended?

I also try the onresizeend event, advertised in MSDN. But it does not seem to get fired at all, neither in Firefox, nor in IE. I use the following code:

<html>
    <head>
        <script>
        <!--
        function doLog(message)
        {
            document.getElementById("log").innerHTML += "<br/>" + message;
        }
        
        function doResize()
        {
            doLog("plain resize");
        }

        function doResizeEnd()
        {
            doLog("resize end");
        }
        -->
        </script>
        <style>
        <!--
        #log {
            width: 400px;
            height: 600px;
            overflow: auto;
            border: 1px solid black;
        }
        -->
        </style>
    </head>
    <body onresize="doResize();" onresizeend="doResizeEnd();">
        <div id="log"/>
    </body>
</html>

Any ideas why this does not work? Maybe the onresizeend event is not supported? In this case, how can I detect when the resize event has ended?

Share Improve this question edited Jun 18, 2022 at 14:07 Brian Tompsett - 汤莱恩 5,89372 gold badges61 silver badges133 bronze badges asked Nov 10, 2008 at 12:36 Gabriel 2,3839 gold badges29 silver badges41 bronze badges

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1 Answer 1

Sorted by: Reset to default 5

From MSDN onresizeend()

Only content editable objects can be included in a control selection. You can make objects content editable by setting the contentEditable property to true or by placing the parent document in design mode.

That explains why it's not firing for you. I suspect you don't want to enable contentEditable, so why not set a timer.

var resizeTimer = 0;
function doResize()
{
    if (resizeTimer)
        clearTimeout(resizeTimer);

    resizeTimer = setTimeout(doResizeEnd, 500);
}

It's not perfect but hopefully will be good enough.

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javascript - html onresizeend event, or equivalent way to detect end of resize - Stack Overflow

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