Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.0 Safari/605.1.15
Safari 15
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
Reduce and Spread 12919.0 Ops/sec
ForEach and Mutate (for .. in loop) 7837.9 Ops/sec
Mutate with Object.assign 16124.1 Ops/sec
Foreach and Mutate (Object.assign) 7541.4 Ops/sec
Script Preparation code:
Tests:
  • Reduce and Spread

  • ForEach and Mutate (for .. in loop)

  • Mutate with Object.assign

  • Foreach and Mutate (Object.assign)