Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0
Firefox 143
Windows
Desktop
7 months ago
Test name Executions per second
Lodash cloneDeep 444518.2 Ops/sec
Native map deep slice(turns objects into arrays) 24372518.0 Ops/sec
Native JSON parse 824589.6 Ops/sec
Native map deep slice at 0(turns objects into arrays) 22762148.0 Ops/sec
Native map(shallow clone) 61649180.0 Ops/sec
Recursive deep clone 5520210.5 Ops/sec
Map deep clone 5644394.0 Ops/sec
Object.assign shallow clone 48050704.0 Ops/sec
structuredClone 654822.0 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