Benchmark: Test array concatenation

Script Preparation code:

function prepare() {
	const a = [];
	for (let i = 0; i < 9000; i++) {
		a.push({ id: 1, displayName: 'displayName', asdasd: 'displayName', displayNamedisplayName: { displayName: 'displayName' } })
	}
	const b = [];
	for (let i = 0; i < 2000; i++) {
		b.push({ id: 1, displayName: 'displayName', asdasd: 'displayName', displayNamedisplayName: { displayName: 'displayName' } })
	}
	return { a, b };
}

Tests:

warmup1
const { a, b } = prepare(); a.forEach(aaa => !aaa)
warmup 2
const { a, b } = prepare(); a.forEach(aaa => !aaa)
foreach push
const { a, b } = prepare(); b.forEach(aaa => a.push(aaa))
concat
const { a, b } = prepare(); a.concat(b)
apply
const { a, b } = prepare(); Array.prototype.push.apply(a, b);
destructure push
const { a, b } = prepare(); a.push(...b)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
warmup1
warmup 2
foreach push
concat
apply
destructure push

Fastest: N/A

Slowest: N/A

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Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

Browser/OS: Chrome 115 on Linux

View result in a separate tab

Test name	Executions per second
warmup1	6120.1 Ops/sec
warmup 2	5960.3 Ops/sec
foreach push	5754.1 Ops/sec
concat	5658.5 Ops/sec
apply	4240.6 Ops/sec
destructure push	4556.8 Ops/sec

Test array concatenation (version: 0)

Comparing performance of: warmup1 vs warmup 2 vs foreach push vs concat vs apply vs destructure push

Created: 6 months ago by: Guest

Jump to the latest result

warmup1

warmup 2

foreach push

concat

apply

destructure push

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A