Run results for: flatten reduce vs for .. of vs reduce TCO

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Tests:

reduce
const flatten = (arr) => arr.reduce((acc, x) => { Array.isArray(x) ? flatten(x).forEach(y => acc.push(y)) : acc.push(x) return acc; }, []) const x = flatten([ [1,2,3], [ [4,5,6], [7,8,9], [[[[[10,11,12]]], [13,14,15]]] ], [[[[[[[[[[[16,17,18]]]]]]]]]]] ]);
for of
const flat = (argarr) => { let arr = [] for (const item of argarr) { if (Array.isArray(item)) arr = arr.concat(flat(item)) else arr.push(item) } return arr } const x = flat([ [1,2,3], [ [4,5,6], [7,8,9], [[[[[10,11,12]]], [13,14,15]]] ], [[[[[[[[[[[16,17,18]]]]]]]]]]] ]);
reduce TOC
const flatten = (arr, acc = []) => { arr.forEach(x => { if (Array.isArray(x)) { flatten(x, acc); } else { acc.push(x); } }); return acc; }; const x = flatten([ [1,2,3], [ [4,5,6], [7,8,9], [[[[[10,11,12]]], [13,14,15]]] ], [[[[[[[[[[[16,17,18]]]]]]]]]]] ]);