Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Safari/605.1.15
Safari 18
Mac OS X 10.15.7
Desktop
9 months ago
Test name Executions per second
Lodash cloneDeep 583807.2 Ops/sec
Native map deep slice(turns objects into arrays) 40221048.0 Ops/sec
Native JSON parse 1028744.4 Ops/sec
Native map deep slice at 0(turns objects into arrays) 41452044.0 Ops/sec
Native map(shallow clone) 71442936.0 Ops/sec
Recursive deep clone 5562177.5 Ops/sec
Map deep clone 5606259.5 Ops/sec
Object.assign shallow clone 15485745.0 Ops/sec
structuredClone 338079.0 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