Run results for: For vs map vs forEach vs for in

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/115.0.5790.160 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 115

Operating system: iOS 16.6

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
for in loop	3800148.2 Ops/sec
map	13461268.0 Ops/sec
forEach	19896042.0 Ops/sec
for	1894503.9 Ops/sec

Script Preparation code:

var data = [1,2,3,4,5,6,7,8,9];

Tests:

for in loop
for (const d in data) { d + 1; }
map
data.map(d => d + 1);
forEach
data.forEach(d => d + 1);
for
for (let i = 0; i < data.length; i++) { data[i] + 1; }

Run results for: For vs map vs forEach vs for in

Which one is faster?

for in loop

map

forEach

for