Underscore isArray vs jQuery isArray

JavaScript performance comparison

Revision 2 of this test case created by Kevin Ennis

Info

Underscore's isArray function versus jQuery's isArray function

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script src="http://underscorejs.org/underscore-min.js">
</script>
<script>
Benchmark.prototype.setup = function() {
    var array = ['im', 'an', 'array', 'bitch', 'respect', 'that', 'yo']
    var notarray = "im not even an array haha!"
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Underscore's isArray
isArrayAnArray = _.isArray(array)
isNotArrayAnArray = _.isArray(notarray)
pending…
jQuery's isArray
isArrayAnArray = jQuery.isArray(array)
isNotArrayAnArray = jQuery.isArray(notarray)
pending…
Array.isArray
isArrayAnArray = Array.isArray(array)
isNotArrayAnArray = Array.isArray(notarray)
pending…

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