Benchmark: for loops 2024-05-30

HTML Preparation code:

<h1>Test different js loops</h1>

Script Preparation code:

var array = Array.from({ length: 100 }, () => (Math.random() * 1000).toFixed(4));
array.push(1000.0000);

Tests:

warmup
for (let i = 0, len = array.length; i < len; i++) {}
for
let sum1 = 0; for (let i = 0, len = array.length; i < len; i++) { sum1 += parseFloat(array[i]); }
for ... of
let sum2 = 0; for (const num of array) { sum2 += parseFloat(num); }
forEach
let sum3 = 0; array.forEach(num => { sum3 += parseFloat(num); });
map
let sum4 = 0; array.map(num => { sum4 += parseFloat(num); });
reduce
let sum5 = array.reduce((sum, num) => sum + parseFloat(num), 0);
while
let sum6 = 0; let i = 0; while (i < array.length) { sum6 += parseFloat(array[i]); i++; }
some
let sum7 = 0; array.some(num => { sum7 += parseFloat(num); });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
warmup
for
for ... of
forEach
map
reduce
while
some

Fastest: N/A

Slowest: N/A

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/133.0.0.0 Safari/537.36

Browser/OS: Chrome 133 on Linux

View result in a separate tab

warmup

36.1M/s

while

524K/s

forEach

524K/s

reduce

523K/s

for ... of

513K/s

for

509K/s

map

495K/s

some

489K/s

View exact numbers

Test name	Executions per second
✓ warmup	36,069,444 Ops/sec
while	524,435 Ops/sec
forEach	524,038 Ops/sec
reduce	523,252 Ops/sec
for ... of	512,577 Ops/sec
for	508,704 Ops/sec
map	494,741 Ops/sec
some	488,919 Ops/sec

for loops 2024-05-30 (version: 0)

Test different loops

Comparing performance of: `warmup vs for vs for ... of vs forEach vs map vs reduce vs while vs some`

Created: 2 years ago by: Guest

Go to the latest result

warmup

for

for ... of

forEach

map

reduce

while

some

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

for loops 2024-05-30 (version: 0)

Test different loops

Comparing performance of: warmup vs for vs for ... of vs forEach vs map vs reduce vs while vs some

Created: 2 years ago by: Guest

Go to the latest result

warmup

for

for ... of

forEach

map

reduce

while

some

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `warmup vs for vs for ... of vs forEach vs map vs reduce vs while vs some`