Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Chrome 126
Windows
Desktop
6 months ago
Test name Executions per second
structuredClone 421863.3 Ops/sec
spread 11591111.0 Ops/sec
Script Preparation code:
x
 
var list = ["test", "apple", "banana", "peach", "123", "foo", "bar", "tree", "dog"];
Tests:
  • structuredClone

     
    const copy = window.structuredClone(list);
  • spread

     
    const copy = [...list];