Benchmark: Lodash sumBy vs forEach vs for vs map 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");
foreach
let result = 0; arr.forEach(element => { result += element.value }); return result;
for
let result = 0; for(let i=0;i<arr.length;i++) { result += arr[i].value; }; return result;
map reduce
arr.reduce((prev, next) => prev + next.value, 0)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.sumBy
foreach
for
map reduce

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Browser/OS: Chrome 104 on Linux

View result in a separate tab

Test name	Executions per second
_.sumBy	995.2 Ops/sec
foreach	962.2 Ops/sec
for	85.5 Ops/sec
map reduce	1115.8 Ops/sec

Lodash sumBy vs forEach vs for vs map reduce (version: 0)

Comparing performance of: _.sumBy vs foreach vs for vs map reduce

Created: one year ago by: Guest

Jump to the latest result

_.sumBy

foreach

for

map reduce

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A