Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0
Firefox 139
Mac OS X 10.15
Desktop
one year ago
Test name Executions per second
Lodash cloneDeep 563797.4 Ops/sec
Native map deep slice(turns objects into arrays) 31062236.0 Ops/sec
Native JSON parse 966485.4 Ops/sec
Native map deep slice at 0(turns objects into arrays) 23985244.0 Ops/sec
Native map(shallow clone) 58667040.0 Ops/sec
Recursive deep clone 2892218.5 Ops/sec
Map deep clone 2269182.0 Ops/sec
Object.assign shallow clone 46557132.0 Ops/sec
structuredClone 712245.2 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