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 Array .push() vs .unshift() 2 (version: 0)

Comparing performance of: .unshift() vs .push() vs .push() preallocated array vs .unshift() preallocated array

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

  • .unshift()

  • .push()

  • .push() preallocated array

  • .unshift() preallocated array

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    .unshift()
    .push()
    .push() preallocated array
    .unshift() preallocated array

    Fastest: N/A

    Slowest: N/A

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Latest run results:
Run details: (Test run date: 5 years ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36
Chrome 68 on Windows
View result in a separate tab
Test name Executions per second
.unshift() 16642.7 Ops/sec
.push() 6036819.0 Ops/sec
.push() preallocated array 5977727.0 Ops/sec
.unshift() preallocated array 32.1 Ops/sec