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/84.0.4147.135 Safari/537.36
Test name |
Executions per second |
for...in |
2338.3 Ops/sec |
Object.keys+forEach (ES5) |
3524.0 Ops/sec |
for...of - keys (ES6) |
3638.2 Ops/sec |
for...of - values (ES6) |
3161.1 Ops/sec |
for...of - entries (ES8) |
2463.9 Ops/sec |
Object.entries (ES8) |
2346.9 Ops/sec |
Tests:
-
for...in
-
Object.keys+forEach (ES5)
-
for...of - keys (ES6)
-
for...of - values (ES6)
-
for...of - entries (ES8)
-
Object.entries (ES8)
Open this result on MeasureThat.net