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Run results for:
Array include vs object key vs Set has V2
performance comparison of ways to find if an array contains a value
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<iframe src="https://measurethat.net/Embed?id=588191" width="100%" height="500px"></iframe>
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
Benchmark engine:
Benchmark.js
Set.has()
185K/s
Object[key]
178K/s
Array.includes()
152K/s
View exact numbers
Test name
Executions per second
✓
Set.has()
185,267 Ops/sec
Object[key]
177,884 Ops/sec
Array.includes()
152,236 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; } }