Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:127.0) Gecko/20100101 Firefox/127.0
Firefox 127
Mac OS X 10.15
Desktop
one year ago
Test name Executions per second
Lodash cloneDeep 475702.1 Ops/sec
Native map deep slice(turns objects into arrays) 26572986.0 Ops/sec
Native JSON parse 820529.1 Ops/sec
Native map deep slice at 0(turns objects into arrays) 23149540.0 Ops/sec
Native map(shallow clone) 53401244.0 Ops/sec
Recursive deep clone 3492889.2 Ops/sec
Map deep clone 3436450.8 Ops/sec
Object.assign shallow clone 55704428.0 Ops/sec
structuredClone 612820.9 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