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Run results for:
flat() vs flatMap()
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0
Browser:
Firefox 142
Operating system:
Linux
Device Platform:
Desktop
Date tested:
7 months ago
Test name
Executions per second
flat()
5298.2 Ops/sec
flatMap()
4101.2 Ops/sec
Script Preparation code:
var arr = Array.from({ length: 9999 }, () => [{a: 1, b: 2, c:3 }, {d: 4, e: 5, f: 6}]);
Tests:
flat()
arr.flat();
flatMap()
arr.flatMap(e => e);