stocker l’objet jQuery dans une variable

JavaScript performance comparison

Test case created

Preparation code

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

Preparation code output

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Testing in unknown unknown
Test Ops/sec
with cach object
 
$intro = $('#intro');
$intro
  .addClass('jevaisdisparaitre')
  .append(' Je vais disparaître.')
  .one('click', function(){
    alert("Bye bye");
    $(this).remove();
  })
  .html('Goodbye World');
 pending…
without caching
 
$('#intro')
  .addClass('jevaisdisparaitre')
  .append(' <strong>Je vais disparaître</strong>.')
  .one('click', function(){
    alert("Bye bye");
    $(this).remove();
  })
  .html('Goodbye World');
 pending…

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