Object loops: for...in vs Object.keys+forEach (ES5) vs for...of (ES6) vs Object.entries (ES8)
4 years ago
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
Test name |
Executions per second |
for...in |
2393.2 Ops/sec |
Object.keys+forEach (ES5) |
3558.1 Ops/sec |
for...of - keys (ES6) |
3545.0 Ops/sec |
for...of - values (ES6) |
3222.5 Ops/sec |
for...of - entries (ES8) |
2459.2 Ops/sec |
Object.entries (ES8) |
2400.6 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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