Run results for: Array.indexOf vs Object lookup small collection

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

Object lookup

50.5M/s

Array indexOf

29.0M/s

View exact numbers

Test name	Executions per second
✓ Object lookup	50,538,364 Ops/sec
Array indexOf	28,994,832 Ops/sec

Script Preparation code:

var o = {'ff1234567890121':0, 'ff1234567890122':1, 'ff1234567890123':2, 'ff1234567890124':3};
var a = ['ff1234567890121', 'ff1234567890122', 'ff1234567890123', 'ff1234567890124'];
var t = 'ff1234567890124';

Tests:

Array indexOf
var i = a.indexOf(t);
Object lookup
var i = o[t];