Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Chrome 139
Mac OS X 10.15.7
Desktop
8 months ago
Test name Executions per second
Lodash cloneDeep 683365.8 Ops/sec
Native map deep slice(turns objects into arrays) 15406141.0 Ops/sec
Native JSON parse 1159434.9 Ops/sec
Native map deep slice at 0(turns objects into arrays) 15440880.0 Ops/sec
Native map(shallow clone) 17657002.0 Ops/sec
Recursive deep clone 3393103.2 Ops/sec
Map deep clone 3615314.2 Ops/sec
Object.assign shallow clone 16581469.0 Ops/sec
structuredClone 538692.1 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:
  • Lodash cloneDeep

  • Native map deep slice(turns objects into arrays)

  • Native JSON parse

  • Native map deep slice at 0(turns objects into arrays)

  • Native map(shallow clone)

  • Recursive deep clone

  • Map deep clone

  • Object.assign shallow clone

  • structuredClone