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 isArray vs optional length 2 (version: 0)

Array.isArray vs array?.length > 0

Comparing performance of: Check Array.isArray([]) vs Check object?.length vs Check Array.isArray(null) vs Check null?.length

Created: 9 months ago by: Guest
Jump to the latest result
Script Preparation code:
Tests:

  • Check Array.isArray([])

  • Check object?.length

  • Check Array.isArray(null)

  • Check null?.length

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    Check Array.isArray([])
    Check object?.length
    Check Array.isArray(null)
    Check null?.length

    Fastest: N/A

    Slowest: N/A

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Latest run results:
Run details: (Test run date: 9 months ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36
Chrome 116 on Windows
View result in a separate tab
Test name Executions per second
Check Array.isArray([]) 19687310.0 Ops/sec
Check object?.length 20369430.0 Ops/sec
Check Array.isArray(null) 20831430.0 Ops/sec
Check null?.length 20672320.0 Ops/sec