Info

Tests the performance of calling jQuery.append() n times vs the performance of pushing n elements to an array and calling jQuery.html(arr.join('')).

Preparation code

<div id="main"></div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script>
  Benchmark.prototype.setup = function() {
    var element = $('#main');
  };

  Benchmark.prototype.teardown = function() {
    $('#main').empty();
  };
</script>

Preparation code output

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var i, len;

for(i = 0, len = 1000; i < len; i = i + 1) {
  element.append('<div class="child"></div>');
}

var arr = [];

for(i = 0, len = 1000; i < len; i = i + 1) {
  arr.push('<div class="child"></div>');
}

element.html(arr.join(''));

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