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Run results for:
Object.fromEntries vs reduce fork
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<iframe src="https://measurethat.net/Embed?id=562278" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:131.0) Gecko/20100101 Firefox/131.0
Browser:
Firefox 131
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
Reduce (map in reducer)
2K/s
Object.fromEntries
2K/s
Reduce (reuse object)
2K/s
View exact numbers
Test name
Executions per second
✓
Reduce (map in reducer)
2,424 Ops/sec
Object.fromEntries
2,009 Ops/sec
Reduce (reuse object)
1,925 Ops/sec
Script Preparation code:
var data = { ...Array.from(Array(10000).keys()) };
Tests:
Object.fromEntries
Object.fromEntries(Object.entries(data).map(([key, value]) => [key, value.toString()]));
Reduce (reuse object)
Object.entries(data).map(([key, value]) => [key, value.toString()]).reduce((acc, [k, v]) => { acc[k] = v; return acc; }, {});
Reduce (map in reducer)
Object.entries(data).reduce((acc, [k, v]) => { acc[k] = v.toString(); return acc }, {});