Run results for: JSON stringify vs slice vs structuredClone vs spread vs Array from

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

slice

30.5M/s

Spread

26.4M/s

Array from

17.7M/s

JSON.stringify

1.1M/s

structuredClone

676K/s

View exact numbers

Script Preparation code:

var vertices = [
      [1, 0, 0, 0],
      [0, 1, 0, 0],
      [0, 0, 1, 0],
      [0, 0, 0, 1],
    ]

var myCopy = null;

Tests: