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

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 16

Operating system: iOS 16.3.1

Device Platform: Mobile

Date tested: 2 years ago

Benchmark engine: Benchmark.js

string split

1.6M/s

spread operator

979K/s

Array.from

837K/s

View exact numbers

Script Preparation code:

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

Tests: