flat vs flatMap vs reduce vs reduce push vs forEach push vs concat spread (version: 0) Benchmark.js

Comparing performance of: reduce vs flatMap vs flat vs reduce push vs forEach push vs concat spread

Created: 3 years ago by: Guest
Go to the latest result
Script Preparation code:
Tests:

Historical Performance Data aggregated from 7 community runs

Desktop Results:
Chrome 7 runs
concat spread
240K/s
forEach push
24K/s
reduce push
23K/s
flat
22K/s
flatMap
21K/s
reduce
16K/s

Fastest: concat spread (15.0x faster)

View exact numbers
  • ✓ concat spread: 239,838 ops/sec
  • • forEach push: 24,003 ops/sec
  • • reduce push: 23,380 ops/sec
  • • flat: 22,013 ops/sec
  • • flatMap: 21,282 ops/sec
  • • reduce: 15,942 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
    reduce
    flatMap
    flat
    reduce push
    forEach push
    concat spread

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Chrome 135 on Mac OS X 10.15.7
View result in a separate tab
concat spread
940K/s
reduce push
69K/s
flat
69K/s
forEach push
69K/s
flatMap
68K/s
reduce
37K/s
View exact numbers
Test name Executions per second
✓ concat spread 939,879 Ops/sec
reduce push 69,171 Ops/sec
flat 69,059 Ops/sec
forEach push 68,733 Ops/sec
flatMap 68,229 Ops/sec
reduce 36,532 Ops/sec

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