Run results for: Array.from() vs new Array() without callback

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

new Array()

1.7M/s

Array.from()

88K/s

View exact numbers

Test name	Executions per second
✓ new Array()	1,654,179 Ops/sec
Array.from()	88,193 Ops/sec

Tests:

new Array()
const renderEmptyPricingTableColumns = ({ length }) => { const emptyPeriodArray = new Array(length).fill(null); return emptyPeriodArray.map((_, idx) => ( "empty-period-"+idx ?? 0 )); }; renderEmptyPricingTableColumns({length : 500})
Array.from()
const renderEmptyPricingTableColumns = ({ length }) => { const emptyPeriodArray = Array.from({length}); return emptyPeriodArray.map((_, idx) => ( "empty-period-"+idx ?? 0 )); } renderEmptyPricingTableColumns({length : 500})