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Why does my refresh take so long with the adding of links to a couple javascript libraries?

Posted on 2014-09-03
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Last Modified: 2014-09-03
I haven't researched this enough to know why so I was hoping someone could tell me why there was a noticeable delay (slow down) in my page refresh after I added some javascript and jQuery code (and library link references) to a page? Is it simply the time that it takes to go out through the internet (each time the page loads) to find these libraries that is causing the delay? Is there a way to improve the performance?

my javascript / jQuery

    <script type="text/javascript" src="http://cod.jquery.com/jquery-1.9.1.js"></script>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
    <script type="text/javascript">

        var delay = (function () {
            var timer = 0;
            return function (callback, ms) {
                clearTimeout(timer);
                timer = setTimeout(callback, ms);
            };
        })();

        $(document).ready(function () {
            var updateWait = setTimeout(fadeUpdate, 3000);
            function fadeUpdate() {
                $("div.UpdatedMessage").fadeOut(1000);
            }
        });
    </script>

my HTML

        <div class="updateAlert">
            <asp:Panel runat="server" ID="pnlUpdateConfirmation" Visible="false" CssClass="UpdatedMessage Alert SavedSmall">
                <h3>
                    <asp:Label runat="server" ID="lblConfirmationMsg"></asp:Label></h3>
            </asp:Panel>
        </div>

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Question by:Michael Sterling
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2 Comments
 
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Accepted Solution

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leakim971 earned 2000 total points
ID: 40302322
you've jQuery twice lines 3 and 4, choose the more recent one until you need a specific version.
the last one compatibl with old browser is 1.11.1 : https://developers.google.com/speed/libraries/devguide?hl=fr#jquery

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

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Author Closing Comment

by:Michael Sterling
ID: 40302333
BINGO! Thanks!
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