Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Chrome 139
Windows
Desktop
8 months ago
Test name Executions per second
Lodash cloneDeep 329881.5 Ops/sec
Native map deep slice(turns objects into arrays) 7700209.5 Ops/sec
Native JSON parse 548541.1 Ops/sec
Native map deep slice at 0(turns objects into arrays) 7496343.0 Ops/sec
Native map(shallow clone) 8562951.0 Ops/sec
Recursive deep clone 1915695.9 Ops/sec
Map deep clone 2013324.0 Ops/sec
Object.assign shallow clone 8073831.0 Ops/sec
structuredClone 229308.8 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