Run results for: Spread operator vs. slice small real

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36

Browser: Chrome 73

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Spread operator	0.4 Ops/sec
Slice()	5.3 Ops/sec

Tests:

Spread operator
var n = []; while(true) { n.push('asdf'); n = [...n]; if(n.length >= 10000) break; }
Slice()
var n = []; while(true) { n.push('asdf'); n = n.slice(); if(n.length >= 10000) break; }