Run results for: Splice vs Spread + Slice

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36

Browser: Chrome 92

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Splice	20373.0 Ops/sec
Spread	19777.5 Ops/sec

Tests:

Splice
const xs = [...Array(1000).keys()]; xs.splice(500, 0, 'hello')
Spread
const xs = [...Array(1000).keys()]; [...xs.slice(0, 500), 'hello', ...xs.slice(500)]