Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3.1 Safari/605.1.15
Safari 17
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
Lodash cloneDeep 512597.5 Ops/sec
Native map deep slice(turns objects into arrays) 6724346.0 Ops/sec
Native JSON parse 875510.3 Ops/sec
Native map deep slice at 0(turns objects into arrays) 6692865.0 Ops/sec
Native map(shallow clone) 11453668.0 Ops/sec
Recursive deep clone 533892.6 Ops/sec
Map deep clone 577234.4 Ops/sec
Object.assign shallow clone 7702084.0 Ops/sec
structuredClone 386538.8 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