Run results for: JS indexOf + array vs object + if

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Browser: Chrome 127

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
indexOf + array	5039.2 Ops/sec
object + if	112695.2 Ops/sec

Script Preparation code:

var arr = [];
var obj = {};

Tests:

indexOf + array
arr.push('a'); arr.push('e'); arr.push('f'); arr.push('d'); if(arr.indexOf('a') != -1){ console.log('a'); } if(arr.indexOf('b') != -1){ console.log('b'); } if(arr.indexOf('c') != -1){ console.log('c'); } if(arr.indexOf('d') != -1){ console.log('d'); }
object + if
obj.a = true; obj.e = true; obj.f = true; obj.d = true; if(obj.a){ console.log('a'); } if(obj.b){ console.log('b'); } if(obj.c){ console.log('c'); } if(obj.d){ console.log('d'); }