Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Chrome 83
Mac OS X 10.14.6
Desktop
4 years ago
Test name Executions per second
map 2805667.8 Ops/sec
fromentries 1506399.4 Ops/sec
Tests:
  • map

    AخA
     
    const x = {...[{id:1,name:'a'},{id:2,name:'b'},{id:3,name:'c'}].reduce((map, item) => map.set(item.id, item.name), new Map())}
  • fromentries

     
    const x = Object.fromEntries([{id:1,name:'a'},{id:2,name:'b'},{id:3,name:'c'}].map((item) => [item.id, item.name]))