Benchmark: Concat vs push(...) vs push.apply() for large arrays

Script Preparation code:

window.top.tests = {control:[], concat:[], spread:[], apply:[]};
window.test = (new Array(10)).fill(null);
window.cutoff = 5000;

Tests:

Control (for push)
for (let element of window.test) window.top.tests.control.push(element); if (window.top.tests.control.length > window.cutoff) { window.top.tests.control = []; console.log('reset control'); }
Concat
window.top.tests.concat = window.top.tests.concat.concat(window.test); if (window.top.tests.concat.length > window.cutoff) { window.top.tests.concat = []; console.log('reset concat'); }
Spread
window.top.tests.spread.push(...window.test); if (window.top.tests.spread.length > window.cutoff) { window.top.tests.spread = []; console.log('reset spread'); }
Push apply
window.top.tests.apply.push.apply(window.top.tests.apply, window.test); if (window.top.tests.apply.length > window.cutoff) { window.top.tests.apply = []; console.log('reset apply'); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Control (for push)
Concat
Spread
Push apply

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:147.0) Gecko/20100101 Firefox/147.0

Browser/OS: Firefox 147 on Linux

View result in a separate tab

Spread

1.4M/s

Push apply

1.3M/s

Concat

608K/s

Control (for push)

431K/s

View exact numbers

Test name	Executions per second
✓ Spread	1,350,772 Ops/sec
Push apply	1,282,076 Ops/sec
Concat	607,547 Ops/sec
Control (for push)	431,037 Ops/sec

Concat vs push(...) vs push.apply() for large arrays (version: 1)

Comparing the various ways to append to a large array

Comparing performance of: `Control (for push) vs Concat vs Spread vs Push apply`

Created: 9 months ago by: Guest

Go to the latest result

Control (for push)

Concat

Spread

Push apply

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Concat vs push(...) vs push.apply() for large arrays (version: 1)

Comparing the various ways to append to a large array

Comparing performance of: Control (for push) vs Concat vs Spread vs Push apply

Created: 9 months ago by: Guest

Go to the latest result

Control (for push)

Concat

Spread

Push apply

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Control (for push) vs Concat vs Spread vs Push apply`