Run results for: flatMap() vs map() and flat()

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36

Browser: Chrome 137

Operating system: Linux

Device Platform: Desktop

Date tested: 6 months ago

flatMap()

180/s

map().flat()

156/s

View exact numbers

Test name	Executions per second
✓ flatMap()	180 Ops/sec
map().flat()	156 Ops/sec

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr[i] = {
    num: [1, i++]
};

Tests: