Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36 OPR/72.0.3815.400
Opera 72
Windows
Desktop
4 years ago
Test name Executions per second
Reduce and Spread 42645.7 Ops/sec
ForEach and Mutate (for .. in loop) 129911.7 Ops/sec
Mutate with Object.assign 97327.3 Ops/sec
Foreach and Mutate (Object.assign) 5622.9 Ops/sec
Reduce Mutate 5959.5 Ops/sec
reduce mutate 2 109458.0 Ops/sec
reduce mutate 3 5811.6 Ops/sec
Script Preparation code:
Tests:
  • Reduce and Spread

  • ForEach and Mutate (for .. in loop)

  • Mutate with Object.assign

  • Foreach and Mutate (Object.assign)

  • Reduce Mutate

  • reduce mutate 2

  • reduce mutate 3