array iteration vs map + filter vs for..of vs for loop (version: 1)

Comparing performance of: forEach vs map vs for..of vs for loop

Created: one year ago by: Guest
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Script Preparation code:
Tests:

Historical Performance Data aggregated from 15 community runs

Desktop Results:
Firefox 8 runs
forEach
28K/s
map
26K/s
for loop
26K/s
for..of
26K/s
View exact numbers
  • ✓ forEach: 27,747 ops/sec
  • • map: 26,309 ops/sec
  • • for loop: 25,937 ops/sec
  • • for..of: 25,892 ops/sec
Chrome 7 runs
forEach
41K/s
map
39K/s
for loop
38K/s
for..of
37K/s

Fastest: forEach (1.1x faster)

View exact numbers
  • ✓ forEach: 41,317 ops/sec
  • • map: 39,015 ops/sec
  • • for loop: 38,346 ops/sec
  • • for..of: 37,431 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
    forEach
    map
    for..of
    for loop

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 14 days ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:152.0) Gecko/20100101 Firefox/152.0
Firefox 152 on Windows
View result in a separate tab
for loop
48K/s
for..of
48K/s
map
48K/s
forEach
47K/s
View exact numbers
Test name Executions per second
✓ for loop 48,075 Ops/sec
for..of 48,011 Ops/sec
map 47,988 Ops/sec
forEach 47,369 Ops/sec

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