Run results for: map vs _.map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36

Browser: Chrome 83

Operating system: Mac OS X 10.15.5

Device Platform: Desktop

Date tested: 3 years ago

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:


var arr = ['a', 'b', 'c'];

Tests:

map
arr.map(v=>' hi')
my map
function myMap(arr,fun) { if(!_.isArray(arr)) return -1; let result = Array(length),index; while (++index < length) { result[index] = iteratee(array[index], index, array); } return result; } myMap(arr,v=>' hi')
_.map
_.map(arr,v=>' hi')