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Run results for:
foreach: object keys vs object values vs object entries
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:142.0) Gecko/20100101 Firefox/142.0
Browser:
Firefox 142
Operating system:
Windows
Device Platform:
Desktop
Date tested:
5 months ago
Test name
Executions per second
object with keys
58668.4 Ops/sec
object with values
173694.6 Ops/sec
object with entries 1
31244.7 Ops/sec
object with entries 2
25886.2 Ops/sec
Script Preparation code:
var obj = {}; for (i = 0; i < 1000; ++i) { obj[i] = i; }
Tests:
object with keys
Object.keys(obj).forEach( (key) => key, );
object with values
Object.values(obj).forEach( (value) => value, );
object with entries 1
Object.entries(obj).forEach( (entry) => entry, );
object with entries 2
Object.entries(obj).forEach( ([key, value]) => [key, value], );