Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Mobile/15E148 Safari/604.1
Mobile Safari 18
iOS 18.5
Mobile
9 months ago
Test name Executions per second
Lodash cloneDeep 641226.6 Ops/sec
Native map deep slice(turns objects into arrays) 45458784.0 Ops/sec
Native JSON parse 1159825.6 Ops/sec
Native map deep slice at 0(turns objects into arrays) 42403372.0 Ops/sec
Native map(shallow clone) 73607776.0 Ops/sec
Recursive deep clone 5178109.5 Ops/sec
Map deep clone 3518693.5 Ops/sec
Object.assign shallow clone 32764170.0 Ops/sec
structuredClone 392922.1 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