Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.192 Safari/537.36
Chrome 88
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
Reduce and Spread 33930.7 Ops/sec
ForEach and Mutate (for .. in loop) 107077.6 Ops/sec
Mutate with Object.assign 79453.8 Ops/sec
Foreach and Mutate (Object.assign) 6033.2 Ops/sec
Script Preparation code:
Tests:
  • Reduce and Spread

  • ForEach and Mutate (for .. in loop)

  • Mutate with Object.assign

  • Foreach and Mutate (Object.assign)