Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.0) Gecko/20100101 Firefox/132.0
Firefox 132
Mac OS X 10.15
Desktop
9 months ago
Test name Executions per second
Lodash cloneDeep 359417.6 Ops/sec
Native map deep slice(turns objects into arrays) 16475115.0 Ops/sec
Native JSON parse 649999.9 Ops/sec
Native map deep slice at 0(turns objects into arrays) 16546111.0 Ops/sec
Native map(shallow clone) 33098850.0 Ops/sec
Recursive deep clone 1616015.5 Ops/sec
Map deep clone 855836.2 Ops/sec
Object.assign shallow clone 37934108.0 Ops/sec
structuredClone 486769.3 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