Run results for: Lodash sumBy vs reduce

Run details:

User agent: Mozilla/5.0 (Linux; Android 7.1.1; E5823) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.136 Mobile Safari/537.36

Browser: Chrome Mobile 74

Operating system: Android 7.1.1

Device Platform: Mobile

Date tested: 5 years ago

Test name	Executions per second
_.sumBy	192.4 Ops/sec
map and reduce	185.4 Ops/sec

HTML Preparation code:

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

Script Preparation code:

function getRandomInt(max) {
  return Math.floor(Math.random() * Math.floor(max));
}

var arr = [];
for(var i = 0; i < 100000; i++){
  arr.push({value:getRandomInt(100)});
}

Tests:

_.sumBy
_.sumBy(arr,"value");
map and reduce
arr.reduce((prev, next) => prev + next.value, 0);

Run results for: Lodash sumBy vs reduce

_.sumBy

map and reduce