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Run results for: Bench flatMap vs spread array

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Safari/605.1.15
Safari 18
Mac OS X 10.15.7
Desktop
one month ago
Test name Executions per second
spread 40526.8 Ops/sec
flatmap 4979.5 Ops/sec
Script Preparation code:
AخA
 
var arr = Array(10_000).fill([0,0,0])
Tests:

  • spread

     
    [...arr];

  • flatmap

     
    arr.flatMap((item) => item);