Benchmark: for vs foreach vs for..in vs for..of, 1m

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const array = new Array(1000000);
for (let i = 0; i < array.length; i++) {
    array[i] = Math.random() * 1000;
}

Tests:

for-i
for (let i = 0; i < array.length; i++) { const value = array[i]; const str = value.toString(10); }
forEach
array.forEach((value) => { const str = value.toString(10); });
for-in
for (const i in array) { const value = array[i]; const str = value.toString(10); }
for-of
for (const value of array) { const str = value.toString(10); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for-i
forEach
for-in
for-of

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 28 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36 Edg/150.0.0.0

Browser/OS: Chrome 150 on Windows

View result in a separate tab

for-i

21/s

for-of

21/s

forEach

19/s

for-in

13/s

View exact numbers

Test name	Executions per second
✓ for-i	21 Ops/sec
for-of	21 Ops/sec
forEach	19 Ops/sec
for-in	13 Ops/sec

for vs foreach vs for..in vs for..of, 1m (version: 1)

Compare loop performance with a small load

Comparing performance of: `for-i vs forEach vs for-in vs for-of`

Created: 28 days ago by: Registered User

Go to the latest result

for-i

forEach

for-in

for-of

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

for vs foreach vs for..in vs for..of, 1m (version: 1)

Compare loop performance with a small load

Comparing performance of: for-i vs forEach vs for-in vs for-of

Created: 28 days ago by: Registered User

Go to the latest result

for-i

forEach

for-in

for-of

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `for-i vs forEach vs for-in vs for-of`