Run results for: for loops vs forEach test: call functions from Map() value iterator with 4 items

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36

Browser: Chrome 149

Operating system: Linux

Device Platform: Desktop

Date tested: 3 months ago

for...of

26.6M/s

forEach

11.0M/s

View exact numbers

Test name	Executions per second
✓ for...of	26,591,118 Ops/sec
forEach	10,978,218 Ops/sec

Script Preparation code:

 var functions = [
    () => Math.random() + 10,
    () => Math.sqrt(Math.random() * 100),
    () => Math.floor(Math.random() * 50),
    () => Math.pow(Math.random(), 2),
];
var functionsMap = new Map();
functions.forEach((fn, i) => functionsMap.set(i, fn));

Tests:

for...of
for (const fun of functionsMap.values()) fun();
forEach
functionsMap.values().forEach(fun => fun());