Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36
Chrome 81
Windows
Desktop
4 years ago
Test name Executions per second
Reduce and Spread 26543.9 Ops/sec
ForEach and Mutate (for .. in loop) 79647.5 Ops/sec
Mutate with Object.assign 59772.9 Ops/sec
Foreach and Mutate (Object.assign) 3764.1 Ops/sec
Script Preparation code:
Tests:
  • Reduce and Spread

  • ForEach and Mutate (for .. in loop)

  • Mutate with Object.assign

  • Foreach and Mutate (Object.assign)