Run results for: Array.reduce vs. Object.fromEntries + Array.map

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36

Browser: Chrome 88

Operating system: Mac OS X 11.2.0

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Array.reduce	15.7 Ops/sec
Object.fromEntries + Array.map	3555.3 Ops/sec

Script Preparation code:

var data = Array.from(new Array(1000), (_, index) => ({
    type: `prop${index}`,
    result: index
}));

Tests:

Array.reduce
data.reduce((acc, { type, result }) => { return { ...acc, [type]: result } })
Object.fromEntries + Array.map
Object.fromEntries(data.map(({ type, result }) => [type, result]));