Run results for: underscore filter vs native

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:87.0) Gecko/20100101 Firefox/87.0

Browser: Firefox 87

Operating system: Mac OS X 10.13

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
backbone	28.7 Ops/sec
native	65.2 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js'></script>

Script Preparation code:

var iterations = 100000;
var array = [0, 1, 2, 3, 5, 6, 7, 8, 9, 10];

Tests:

backbone
for (var i = 0; i < iterations; i++) { _.filter(array, function(element) { return element % 2 === 0 }); }
native
for (var i = 0; i < iterations; i++) { array.filter(function(element) { return element % 2 === 0 }); }