lodash vs underscore intersection

JavaScript performance comparison

Test case created by John-David Dalton and last updated

Preparation code

<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.3/underscore-min.js"></script>
<script>
var underscore = _.noConflict();
</script>
<script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/1.0.0-rc.3/lodash.min.js"></script>
<script>
var lodash = _.noConflict();
</script>
<script>
Benchmark.prototype.setup = function() {
    var lodash = window.lodash,
        underscore = window.underscore;
       
    var numbers = Array(20);
    for (var i = 0; i < 20; i++) {
      numbers[i] = i;
    }
    var others = numbers.slice().reverse();
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Underscore
underscore.intersection(numbers, others);
pending…
Lo-Dash
lodash.intersection(numbers, others);  
pending…

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