Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15
Safari 17
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
Lodash cloneDeep 513448.5 Ops/sec
Native map deep slice(turns objects into arrays) 6107900.0 Ops/sec
Native JSON parse 814714.2 Ops/sec
Native map deep slice at 0(turns objects into arrays) 6166209.5 Ops/sec
Native map(shallow clone) 10569592.0 Ops/sec
Recursive deep clone 473079.6 Ops/sec
Map deep clone 510950.9 Ops/sec
Object.assign shallow clone 7016099.5 Ops/sec
structuredClone 345547.2 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