Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
Run results for:
for of vs Array.reduce vs Array.forEach vs for i for summing and array of integers
Test which looping method has the best performance regarding getting the total sum of an array of integers in Javascript
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=503113" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
for of
148K/s
reduce
76K/s
forEach
58K/s
for i
1K/s
View exact numbers
Test name
Executions per second
✓
for of
148,445 Ops/sec
reduce
75,579 Ops/sec
forEach
58,051 Ops/sec
for i
1,478 Ops/sec
Script Preparation code:
var arr = []; for(var i=0; i < 10000; i++) { arr.push(Math.floor(Math.random() * Math.floor(10000))); }
Tests:
for of
var sum = 0; for (var e of arr) { sum += e; }
forEach
var sum = 0; arr.forEach(e => {sum += e;})
reduce
var sum = arr.reduce((acm, current) => acm + current);
for i
var sum = 0; for (var i = 0; i < arr.length; i++) { sum += arr[i]; }