Run results for: spread vs key insert

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36

Browser: Chrome 85

Operating system: Mac OS X 10.15.6

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
spread	1695666.2 Ops/sec
key insert	4821897.0 Ops/sec

Tests:

spread
const arrayA = [{ id: 1, value: 'abc', }, { id: 2, value: 'abc', }, { id: 3, value: 'abc', }, { id: 4, value: 'abc', }]; const reduced = arrayA.reduce((obj, curr) => ({ ...obj, [curr.id]: curr.value }), {});
key insert
const arrayA = [{ id: 1, value: 'abc', }, { id: 2, value: 'abc', }, { id: 3, value: 'abc', }, { id: 4, value: 'abc', }]; const reduced = arrayA.reduce((obj, curr) => { obj[curr.id] = curr.value; return obj; }, {});