Run results for: Functional Vs Imperative

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 143

Operating system: Android

Device Platform: Mobile

Date tested: 5 months ago

Test name	Executions per second
Functional	79248.2 Ops/sec
Imperative	699893.3 Ops/sec

Script Preparation code:

window.nums = new Array(1000).fill(0).map((x,i) => i)

Tests:

Functional
const y = nums.filter(x => x%2).map(x => x*3).filter(x => x < 100) return y
Imperative
const y = [] for(const x of nums) { if(x%2) { const x3 = x*3; if(x3 < 100) { y.push(x3) } } } return y