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Run results for:
Fastest way to check if object is empty with 3 types of checks
You don't need to make add for loops in your test scenarios, the benchmark does it itself.
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<iframe src="https://measurethat.net/Embed?id=619226" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Browser:
Chrome 141
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
9 months ago
iterate over props
125.2M/s
object.keys()
107.0M/s
JSON.stringify()
33.2M/s
View exact numbers
Test name
Executions per second
✓
iterate over props
125,198,416 Ops/sec
object.keys()
106,954,536 Ops/sec
JSON.stringify()
33,201,214 Ops/sec
Script Preparation code:
var xxx = {}
Tests:
object.keys()
Object.keys(xxx) === 0
JSON.stringify()
JSON.stringify(xxx) === "{}"
iterate over props
let isEmpty = true; for (const key in xxx) { isEmpty = false; break; } return isEmpty;