data v attr

JavaScript performance comparison

Test case created by m

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 
<script>
Benchmark.prototype.setup = function() {
    var $li, i, n;
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
attr
for (i = 0, n = 10000; i < n; i += 1) {
$li = $('<li />').attr('data-key', 'value');
}
pending…
data
for (i = 0, n = 10000; i < n; i += 1) {
$li = $('<li />').data('key', 'value');
}
pending…
direct
for (i = 0, n = 10000; i < n; i += 1) {
$li = $('<li data-key="value"></li>');
}
pending…

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