Run results for: array construction comparison extended

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser: Chrome 135

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

new Array()

168.1M/s

[] + fill undefined

65.5M/s

[] + fill zeroes

64.7M/s

[] + fill void

64.5M/s

new Array() zeroed

61.7M/s

[] + length

9.7M/s

New Array pre-allocated then zeroed

2.1M/s

Array.from()

96K/s

Array.from zeroes

84K/s

View exact numbers

Test name	Executions per second
✓ new Array()	168,084,496 Ops/sec
[] + fill undefined	65,529,688 Ops/sec
[] + fill zeroes	64,671,828 Ops/sec
[] + fill void	64,461,416 Ops/sec
new Array() zeroed	61,723,544 Ops/sec
[] + length	9,738,759 Ops/sec
New Array pre-allocated then zeroed	2,120,184 Ops/sec
Array.from()	95,744 Ops/sec
Array.from zeroes	83,717 Ops/sec

Tests: