Run results for: Spread operator vs. slice small real

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36 OPR/58.0.3135.132

Browser: Opera 58

Operating system: Mac OS X 10.14.3

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Spread operator	0.7 Ops/sec
Slice()	11.1 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; }

Run results for: Spread operator vs. slice small real

Creating a "new" array reference every time

Spread operator

Slice()