Run results for: Array.flat vs (reduce + concat) vs (reduce + destructure) vs (reduce + push) vs lodash.flatten vs destructuring 2

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

destructuring

20.5M/s

reduce + push

10.4M/s

lodash.flatten

8.9M/s

reduce + destructure

5.5M/s

Array.flat

4.0M/s

reduce + concat

2.2M/s

View exact numbers

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var params = [[1, 2], ["hello", true, 7], {}, [null, undefined, {}], 5, [1, 2, 3, 4, 5], [false, true, {}, {}, {}]];

Tests:

Array.flat
params.flat();
reduce + concat
params.reduce((acc, val) => acc.concat(val), []);
reduce + destructure
params.reduce((acc, curr) => Array.isArray(curr) ? [...acc, ...curr] : [...acc, curr] , []);
reduce + push
params.reduce((acc, curr) => { Array.isArray(curr) ? acc.push(...curr) : acc.push(curr); return acc; }, []);
lodash.flatten
_.flatten(params)
destructuring
[ ...params[0], ...params[1], params[2], ...params[3], params[4], ...params[5], ...params[6] ]