Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1 Safari/605.1.15
Safari 18
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
Lodash cloneDeep 537054.8 Ops/sec
Native map deep slice(turns objects into arrays) 7264338.5 Ops/sec
Native JSON parse 949220.1 Ops/sec
Native map deep slice at 0(turns objects into arrays) 7326596.5 Ops/sec
Native map(shallow clone) 13152973.0 Ops/sec
Recursive deep clone 535711.2 Ops/sec
Map deep clone 584692.6 Ops/sec
Object.assign shallow clone 7734794.5 Ops/sec
structuredClone 343857.6 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