jQuery Cached Set

JavaScript performance comparison

Revision 23 of this test case created

Info

Compare performance of cached vs repeated element selections

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

<div class="ContentDetail Rank Rank5">
        <table id="rankTable"
                style="word-break: break-all; min-width: 956px; width: 250px;">
                <thead>
                        <tr id="trDateInterval">
                                <th colspan="2">20120301 ~ 20120810</th>
                        </tr>
                        <tr id="trArticle" class="bg">
                                <th>연관어</th>
                                <th>문서수</th>
                        </tr>
                </thead>
                <tbody>
                        <tr id="trRank0">
                        </tr>
                        <tr id="trRank1">
                        </tr>
<tr id="trRank2">
                        </tr>
<tr id="trRank3">
                        </tr>
<tr id="trRank4">
                        </tr>
<tr id="trRank5">
                        </tr>

                </tbody>
        </table>
</div>
 

Preparation code output

20120301 ~ 20120810
연관어 문서수

Test runner

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Testing in unknown unknown
Test Ops/sec
'div.Rank5 tr:odd'
$('#rankTable tbody tr').append('<td></td>').text("label");
$('#rankTable tbody tr').append('<td></td>').text("freq");
                       
pending…
'.Rank5 tr:odd'
$('#rankTable tbody tr').append('<td>label</td>');
$('#rankTable tbody tr').append('<td>freq</td>');
pending…

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