Object loops: for...in vs Object.keys+forEach (ES5) vs for...of (ES6) vs Object.entries (ES8)
6 years ago
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Safari/605.1.15
Test name |
Executions per second |
for...in |
3484.0 Ops/sec |
Object.keys+forEach (ES5) |
4470.2 Ops/sec |
for...of - keys (ES6) |
4505.2 Ops/sec |
for...of - values (ES6) |
7666.4 Ops/sec |
for...of - entries (ES8) |
5370.7 Ops/sec |
Object.entries (ES8) |
5449.7 Ops/sec |
Tests:
-
for...in
-
Object.keys+forEach (ES5)
-
for...of - keys (ES6)
-
for...of - values (ES6)
-
for...of - entries (ES8)
-
Object.entries (ES8)
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