Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0
Firefox 140
Mac OS X 10.15
Desktop
8 months ago
Test name Executions per second
Lodash cloneDeep 560706.7 Ops/sec
Native map deep slice(turns objects into arrays) 30323614.0 Ops/sec
Native JSON parse 950649.4 Ops/sec
Native map deep slice at 0(turns objects into arrays) 23531032.0 Ops/sec
Native map(shallow clone) 57771616.0 Ops/sec
Recursive deep clone 3828658.8 Ops/sec
Map deep clone 1382407.8 Ops/sec
Object.assign shallow clone 46575876.0 Ops/sec
structuredClone 771951.9 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