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 Array.prototype.concat vs spread operator on Attributes List (version: 3)

Compare the new ES6 spread operator with the traditional concat() method

Comparing performance of: slice vs spread operator vs push apply into empty array vs Array.from vs Object.values

Created: 5 years ago by: Registered User
Jump to the latest result
Script Preparation code:
Tests:

  • slice

  • spread operator

  • push apply into empty array

  • Array.from

  • Object.values

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    slice
    spread operator
    push apply into empty array
    Array.from
    Object.values

    Fastest: N/A

    Slowest: N/A

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Latest run results:
Run details: (Test run date: 5 years ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36
Chrome 66 on Mac OS X 10.13.4
View result in a separate tab
Test name Executions per second
slice 365786.8 Ops/sec
spread operator 430096.5 Ops/sec
push apply into empty array 1110370.0 Ops/sec
Array.from 317905.8 Ops/sec
Object.values 75552.5 Ops/sec