Run results for: Array.prototype.concat vs Spread operator

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Browser: Chrome 69

Operating system: Mac OS X 10.14.0

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Array.prototype.concat	10141.2 Ops/sec
Spread operator	8596.8 Ops/sec

Tests:

Array.prototype.concat
const test = [].concat(Array(10000).fill('1')).concat(Array(100).fill('2'));
Spread operator
const test = [ ...Array(10000).fill('1'), ...Array(100).fill('2')];