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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=612894" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0
Browser:
Firefox 140
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
iterate over props
74.8M/s
object.keys()
58.3M/s
JSON.stringify()
22.1M/s
View exact numbers
Test name
Executions per second
✓
iterate over props
74,819,056 Ops/sec
object.keys()
58,339,520 Ops/sec
JSON.stringify()
22,125,872 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;