Run results for: array access vs object access

Run details:

User agent: Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Chrome OS 14541.0.0

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

array access

41.2M/s

object access

39.3M/s

View exact numbers

Test name	Executions per second
✓ array access	41,218,208 Ops/sec
object access	39,348,584 Ops/sec

Script Preparation code:

size = 15000
array = Array.from({ length: size }, (v, i) => i)
object = Object.assign({}, Array.from({ length: size }, (v, i) => i))

Tests: