Test case details

Preparation Code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"> </script> <script src="//documentcloud.github.com/underscore/underscore-min.js"> </script> <script> window.underscore = _.noConflict(); </script> <script src="https://raw.github.com/bestiejs/lodash/master/lodash.min.js"> </script> <script> window.lodash = _.noConflict(); </script>
var $ = window.$,         lodash = window.lodash,         underscore = window.underscore;         var a = [],         newArray = [],         pi = Math.PI;         for (var i = 1, max= 100 ; i <= max ; i++) {       a.push('Fundamental alert number ' + i);     }

Test cases

Test #1

$.each(a, function(index, val) {   newArray.push(val); });

Test #2

for (var i = 0, len = a.length; i < len; i++) {   newArray.push(     a[i]   ); }

Test #3

underscore.each(a, function(item) {   newArray.push(     item   ); });

Test #4

lodash.each(a, function(item) {   newArray.push(     item   ); });

Test #5

underscore(a).each(function(item) {   newArray.push(     item   ); });

Test #6

for (var b = a[0], len = a.length; len; b = a[--len]) {   newArray.push(     b   ); }

Test #7

var i = 0, len = a.length; while (i != len) {   newArray.push(a[i++]); }