Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0
Firefox 126
Windows
Desktop
2 years ago
Test name Executions per second
Lodash cloneDeep 321397.4 Ops/sec
Native map deep slice(turns objects into arrays) 22464062.0 Ops/sec
Native JSON parse 535722.9 Ops/sec
Native map deep slice at 0(turns objects into arrays) 19703246.0 Ops/sec
Native map(shallow clone) 48734416.0 Ops/sec
Recursive deep clone 3136552.2 Ops/sec
Map deep clone 3171132.0 Ops/sec
Object.assign shallow clone 44621516.0 Ops/sec
structuredClone 389244.8 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