Run results for: Array include vs object key vs Set has V2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Array.includes()	152235.7 Ops/sec
Object[key]	177884.5 Ops/sec
Set.has()	185267.0 Ops/sec

Script Preparation code:

var reports = (new Array(200)).fill(null).reduce((prev, newVal) => {prev.push({type: Math.random() + ''}); return prev; }, [{ type: 'core' }]);
var SERVICES = [{ type: 'core' }, { type: 'foo' },{ type: 'bar' }];

Tests:

Array.includes()
var has; var array = SERVICES.map((service) => service.type); for (report of reports) { if(array.includes(report.type)) { has = true; } }
Object[key]
var has; var object = SERVICES.reduce((result, service) => { result[service.type] = service.type; return result; }, {}); for (report of reports) { if(object[report.type]) { has = true; } }
Set.has()
var has; var set = new Set(SERVICES.map((service) => service.type)); for (report of reports) { if(set.has(report.type)) { has = true; } }

Run results for: Array include vs object key vs Set has V2

performance comparison of ways to find if an array contains a value

Array.includes()

Object[key]

Set.has()