Benchmark: reduce vs for loop

Script Preparation code:

var arrRandom = [];
for(var intCtr=0; intCtr<1000; intCtr++) {
  arrRandom.push(Math.floor(Math.random() * Math.floor(10000)));
}
function doRedeuce(pArray) {
	return pArray.reduce(function(accum, curr) {return accum+curr});
}
function doLoop(pArray) {
	var accum = 0;
	for(var intCtr=0; intCtr<pArray.length; intCtr++) {
		accum += pArray[intCtr];
	}
	return accum;
}
function doForEach(pArray) {
	var accum = 0;
	pArray.forEach(function(item) {
		accum += item;
	});
}

Tests:

reduce
var redeuceResult=0; redeuceResult = doRedeuce(arrRandom);
for loop
var loopResult=0; loopResult = doLoop(arrRandom);
forEach
var forEachResult=0 forEachResult = doForEach(arrRandom)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
reduce
for loop
forEach

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Mac OS X 10.15.7

View result in a separate tab

for loop

1.4M/s

reduce

1.3M/s

forEach

847K/s

View exact numbers

Test name	Executions per second
✓ for loop	1,371,993 Ops/sec
reduce	1,296,208 Ops/sec
forEach	847,326 Ops/sec

reduce vs for loop (version: 0)

A test summing 1000 random numbers

Comparing performance of: `reduce vs for loop vs forEach`

Created: 8 years ago by: Guest

Go to the latest result

reduce

for loop

forEach

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

reduce vs for loop (version: 0)

A test summing 1000 random numbers

Comparing performance of: reduce vs for loop vs forEach

Created: 8 years ago by: Guest

Go to the latest result

reduce

for loop

forEach

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `reduce vs for loop vs forEach`