Benchmark: add objects to array v2

Script Preparation code:

src = {}
for (let ki = 0; ki < 32; ++ki)
{
  k = 'key_' + ki
  src[k] = undefined
}

function copyObject(o)
{
  return {...o}	// shallow copy
}

numInsertions = 10000

Tests:

append via push
a = [] for (let i = 0; i < numInsertions; ++i) { a.push(copyObject(src)) }
prepend via splice
a = [] for (let i = 0; i < numInsertions; ++i) { a.splice(0,0,copyObject(src)) }
prepend via unshift
a = [] for (let i = 0; i < numInsertions; ++i) { a.unshift(copyObject(src)) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
append via push
prepend via splice
prepend via unshift

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Browser/OS: Chrome 105 on Windows

View result in a separate tab

Test name	Executions per second
append via push	148.6 Ops/sec
prepend via splice	85.9 Ops/sec
prepend via unshift	36.2 Ops/sec

add objects to array v2 (version: 1)

Comparing performance of: append via push vs prepend via splice vs prepend via unshift

Created: one year ago by: Registered User

Jump to the latest result

append via push

prepend via splice

prepend via unshift

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A