Run results for: Array.from vs string split vs spread unicode

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

spread operator

12.7M/s

string split

12.1M/s

Array.from

9.2M/s

View exact numbers

Script Preparation code:

var s1 = "foo";
var s2 = "𠮷𠮾".concat("🌈").concat("🐉");

Tests: