Run results for: map-reduce-loop

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36

Browser: Chrome 86

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
map-reduce	47000.2 Ops/sec
loop	49417.6 Ops/sec

Script Preparation code:

window.cols = Array.from({length: 20}).map(() => ({ style: { width: '123px' }}))

Tests:

map-reduce
const sum = cols .map(c => parseFloat(c.style.width)) .reduce((a, b) => a + b); console.log(sum)
loop
let sum = 0 for (const c of cols) { sum += parseFloat(c.style.width) } console.log(sum)