Set vs Array vs Object for unique list. Then map (version: 0) Benchmark.js

Comparing performance of: Unique Array vs Set vs Object

Created: 5 years ago by: Registered User
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Script Preparation code:
Tests:

Historical Performance Data aggregated from 9 community runs

Desktop Results:
Chrome 9 runs
Object
55K/s
Set
49K/s
Unique Array
15K/s

Fastest: Object (3.7x faster)

View exact numbers
  • ✓ Object: 55,001 ops/sec
  • • Set: 48,576 ops/sec
  • • Unique Array: 14,954 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
    Unique Array
    Set
    Object

    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/140.0.0.0 Safari/537.36
Chrome 140 on Mac OS X 10.15.7
View result in a separate tab
Set
33K/s
Object
33K/s
Unique Array
15K/s
View exact numbers
Test name Executions per second
✓ Set 33,445 Ops/sec
Object 32,917 Ops/sec
Unique Array 15,099 Ops/sec

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