Run results for: Reduce vs Map+FromEntries vs for loop

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:124.0) Gecko/20100101 Firefox/124.0

Browser: Firefox 124

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

for loop

695/s

reduce

667/s

map + fromEntries

549/s

View exact numbers

Script Preparation code:

var data = Array.from(Array(10000).keys());

Tests:

reduce
Object.entries(data).reduce((acc, [k, v]) => { acc[k] = v.toString(); return acc; }, {});
map + fromEntries
Object.fromEntries(Object.entries(data).map(([k, v]) => ([k, v.toString()])));
for loop
const dataObject = Object.entries(data) const acc = {} for (let i = 0; i < dataObject.length; i++) { const [k, v] = dataObject[i]; acc[k] = v.toString() }