iterating through arrays (for .. of vs forEach (version: 1)

compare for ..of iteration speed with forEach method

Comparing performance of: for .. of vs forEach

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

Historical Performance Data aggregated from 5 community runs

Desktop Results:
Chrome 5 runs
for .. of
2.0M/s
forEach
1.6M/s

Fastest: for .. of (1.3x faster)

View exact numbers
  • ✓ for .. of: 2,038,044 ops/sec
  • • forEach: 1,603,154 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 .. of
    forEach

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 7 months ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36 Edg/143.0.0.0
Chrome 143 on Mac OS X 10.15.7
View result in a separate tab
for .. of
3.7M/s
forEach
3.7M/s
View exact numbers
Test name Executions per second
✓ for .. of 3,675,988 Ops/sec
forEach 3,656,322 Ops/sec

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