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Run results for:
flatMap() vs filter().map() 1asdasd
flatMap vs filter map
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36
Browser:
Chrome 144
Operating system:
Windows
Device Platform:
Desktop
Date tested:
6 months ago
filter().map()
830/s
flatMap()
665/s
View exact numbers
Test name
Executions per second
✓
filter().map()
830 Ops/sec
flatMap()
665 Ops/sec
Script Preparation code:
var arr = []; var i = 0; while (i <= 1E5) arr[i] = i++;
Tests:
filter().map()
arr.filter(x => x % 3) arr.forEach(x => x/100)
flatMap()
arr.flatMap(x => x % 3 ? x : []) arr.forEach(x => x/100)