Run details:
Mozilla/5.0 (iPhone; CPU iPhone OS 26_1_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/143.0.7499.38 Mobile/15E148 Safari/604.1
Chrome Mobile iOS 143
iOS 26.1.0
Mobile
5 months ago
Test name Executions per second
Lodash cloneDeep 839057.9 Ops/sec
Native map deep slice(turns objects into arrays) 49951080.0 Ops/sec
Native JSON parse 1400993.9 Ops/sec
Native map deep slice at 0(turns objects into arrays) 47597780.0 Ops/sec
Native map(shallow clone) 78954968.0 Ops/sec
Recursive deep clone 6667400.5 Ops/sec
Map deep clone 4074593.5 Ops/sec
Object.assign shallow clone 45089748.0 Ops/sec
structuredClone 350445.7 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