Benchmark: merge arrays 2 - MeasureThat.net

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)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
spread operator
concat
flat
push

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

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/OS: Chrome 120 on Windows

View result in a separate tab

push

6.7M/s

concat

4.1M/s

spread operator

3.7M/s

flat

351K/s

View exact numbers

Test name	Executions per second
✓ push	6,686,508 Ops/sec
concat	4,132,704 Ops/sec
spread operator	3,675,926 Ops/sec
flat	351,102 Ops/sec

merge arrays 2 (version: 0) Benchmark.js

Comparing performance of: `spread operator vs concat vs flat vs push`

Created: 2 years ago by: Guest

Go to the latest result

spread operator

concat

flat

push

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

merge arrays 2 (version: 0) Benchmark.js

Comparing performance of: spread operator vs concat vs flat vs push

Created: 2 years ago by: Guest

Go to the latest result

spread operator

concat

flat

push

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `spread operator vs concat vs flat vs push`