Run results for: Intermediate variable vs, direct array access.

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_6_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.6.2

Device Platform: Mobile

Date tested: 5 months ago

Test name	Executions per second
Intermediate variable	336629184.0 Ops/sec
Direct access	317614720.0 Ops/sec

Script Preparation code:

const data = [2025, 9, 30, 11, 14.3895];

Tests:

Intermediate variable
const year = data[0]; const month = data[1]; const day = data[2]; const hour = data[3]; const str = `${year}-${month}-${day}T${hour}:00`;
Direct access
const str = `${data[0]}-${data[1]}-${data[2]}T${data[3]}:00`;