Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Chrome 126
Mac OS X 10.15.7
Desktop
6 months ago
Test name Executions per second
structuredClone 1008900.2 Ops/sec
spread 16047903.0 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];