Benchmark: Lodash sumBy vs map and reduce

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.map(item => item.value).reduce((prev, next) => prev + next);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.sumBy
map and reduce

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

Run details: (Test run date: 27 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser/OS: Chrome 127 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
_.sumBy	1461.9 Ops/sec
map and reduce	806.6 Ops/sec

Lodash sumBy vs map and reduce (version: 0)

Comparing performance of: _.sumBy vs map and reduce

Created: 6 years ago by: Guest

Jump to the latest result

_.sumBy

map and reduce

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A