filter + map vs conditional + foreach

Compare chained `array.filter().map()` vs creating a new array, looping through the previous one and conditionally pushing to it.
9 months ago
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Test name Executions per second
filter + map 13143.1 Ops/sec
conditional + forEach 26356.2 Ops/sec
Script Preparation code:
Tests:
  • filter + map

  • conditional + forEach

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