Run results for: Array.concat vs Spread Operator

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:60.0) Gecko/20100101 Firefox/60.0

Browser: Firefox 60

Operating system: Mac OS X 10.13

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
Spread operator	17904050.0 Ops/sec
Concat	13729840.0 Ops/sec

Tests:

Spread operator
const a = [ "Hello", true, 10 ], b = [ "World", false, 4 ]; let c = [ ...a, ...b ];
Concat
const a = [ "Hello", true, 10 ], b = [ "World", false, 4 ]; let c = a.concat(b);