for, for-of, forEach (version: 1)

Comparing performance of: for loop vs for-of const vs for-of var vs forEach vs Array.prototype.forEach vs iterator.forEach vs Iterator.prototype.forEach

Created: 10 months ago by: Registered User
Go to the latest result
Script Preparation code:
Tests:

Historical Performance Data aggregated from 5 community runs

Desktop Results:
Chrome 5 runs
for-of var
15K/s
for-of const
13K/s
forEach
12K/s
for loop
5K/s
Array.prototype.forEach
2K/s
Iterator.prototype.forEach
1K/s
iterator.forEach
1K/s

Fastest: for-of var (13.5x faster)

View exact numbers
  • ✓ for-of var: 14,549 ops/sec
  • • for-of const: 12,923 ops/sec
  • • forEach: 12,284 ops/sec
  • • for loop: 5,439 ops/sec
  • • Array.prototype.forEach: 2,448 ops/sec
  • • Iterator.prototype.forEach: 1,089 ops/sec
  • • iterator.forEach: 1,076 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    for loop
    for-of const
    for-of var
    forEach
    Array.prototype.forEach
    iterator.forEach
    Iterator.prototype.forEach

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 8 months ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Chrome 142 on Windows
View result in a separate tab
for-of var
18K/s
forEach
13K/s
for loop
6K/s
for-of const
3K/s
Array.prototype.forEach
3K/s
Iterator.prototype.forEach
1K/s
iterator.forEach
1K/s
View exact numbers
Test name Executions per second
✓ for-of var 17,572 Ops/sec
forEach 13,438 Ops/sec
for loop 5,587 Ops/sec
for-of const 2,914 Ops/sec
Array.prototype.forEach 2,632 Ops/sec
Iterator.prototype.forEach 1,177 Ops/sec
iterator.forEach 1,156 Ops/sec

Related benchmarks