Run results for: desctructuring object keys vs access via dot

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Dot notation

309/s

Destructuring

287/s

View exact numbers

Test name	Executions per second
✓ Dot notation	309 Ops/sec
Destructuring	287 Ops/sec

Script Preparation code:

const data = Array.from({length: 1_000_000}, () => ({
    a: Math.random(),
    b: Math.random(),
    c: Math.random(),
}));

Tests:

Destructuring
let sum1 = 0; for (let i = 0; i < data.length; i++) { const {a, b, c} = data[i]; sum1 += a + b + c; }
Dot notation
let sum2 = 0; for (let i = 0; i < data.length; i++) { const obj = data[i]; sum2 += obj.a + obj.b + obj.c; }