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spread vs push

Benchmark created on

Setup

const arr = [];

for (let i = 0; i < 1000; i++) {
	arr.push({
		id: Math.floor(Math.random()*100),
		gid: Math.floor(Math.random()*100),
	})
}

Test runner

Ready to run.

Test Ops/sec

spread

Testing in
Test	Ops/sec
spread	`return arr.reduce((acc, el) => { if (el.id < 50) { return acc } return [...acc, el.id] }, [])`	ready
push	`return arr.reduce((acc, el) => { if (el.id >= 50) { acc.push(el.id) } return acc; }, [])`	ready
map-reduce	`return arr.map(el => el.id).filter(el => el.id >= 50)`	ready

return arr.reduce((acc, el) => {
	if (el.id < 50) {
		return acc
	}
	return [...acc, el.id]
}, [])

ready

push

return arr.reduce((acc, el) => {
	if (el.id >= 50) {
		acc.push(el.id)
	}
	return acc;
}, [])

ready

map-reduce

return arr.map(el => el.id).filter(el => el.id >= 50)

ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on