Object loops: for...in vs Object.keys+forEach (ES5) vs for...of (ES6) vs Object.entries (ES8)
8 months ago
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 Edg/121.0.0.0
Test name |
Executions per second |
for...in |
2227.3 Ops/sec |
Object.keys+forEach (ES5) |
3264.2 Ops/sec |
for...of - keys (ES6) |
3267.9 Ops/sec |
for...of - values (ES6) |
2968.5 Ops/sec |
for...of - entries (ES8) |
2736.0 Ops/sec |
Object.entries (ES8) |
2752.2 Ops/sec |
Tests:
-
for...in
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Object.keys+forEach (ES5)
-
for...of - keys (ES6)
-
for...of - values (ES6)
-
for...of - entries (ES8)
-
Object.entries (ES8)
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