Run results for: merge arrays 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
spread operator	3675925.8 Ops/sec
concat	4132704.0 Ops/sec
flat	351101.8 Ops/sec
push	6686507.5 Ops/sec

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var MyArr = Array.from({length: 40}, () => Math.floor(Math.random() * 40));
var MyArr2 = Array.from({length: 40}, () => Math.floor(Math.random() * 40));
var myCopy = null;

Tests:

spread operator
myCopy = [...MyArr, ...MyArr2]
concat
myCopy = MyArr.concat(MyArr2)
flat
myCopy = [MyArr, MyArr2].flat()
push
myCopy = MyArr.push(MyArr2)

Run results for: merge arrays 2

spread operator

concat

flat

push