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Run results for:
Array.flat vs (reduce + concat) vs (reduce + destructure) vs (reduce + push)
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<iframe src="https://measurethat.net/Embed?id=600364" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
Browser:
Chrome 135
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
reduce + push
10.1M/s
reduce + destructure
5.6M/s
reduce + concat
3.6M/s
Array.flat
3.5M/s
View exact numbers
Test name
Executions per second
✓
reduce + push
10,099,776 Ops/sec
reduce + destructure
5,598,236 Ops/sec
reduce + concat
3,625,401 Ops/sec
Array.flat
3,532,410 Ops/sec
Tests:
Array.flat
const params = [[1, 2], ["hello", true, 7], [null, undefined, {}], [1, 2, 3, 4, 5], [false, true, {}, {}, {}]]; params.flat();
reduce + concat
const params = [[1, 2], ["hello", true, 7], [null, undefined, {}], [1, 2, 3, 4, 5], [false, true, {}, {}, {}]]; params.reduce((acc, val) => acc.concat(val), []);
reduce + destructure
const params = [[1, 2], ["hello", true, 7], [null, undefined, {}], [1, 2, 3, 4, 5], [false, true, {}, {}, {}]]; params.reduce((acc, curr) => [...acc, ...curr], []);
reduce + push
const params = [[1, 2], ["hello", true, 7], [null, undefined, {}], [1, 2, 3, 4, 5], [false, true, {}, {}, {}]]; params.reduce((acc, curr) => (acc.push(...curr), acc), []);