Run results for: Spread operator vs. slice small real

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0

Browser: Firefox 66

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Spread operator	0.8 Ops/sec
Slice()	1.7 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; }