Run results for: concat vs spread perfs

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36

Browser: Chrome 79

Operating system: Mac OS X 10.15.4

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Spread	10688420.0 Ops/sec
concat	5594975.0 Ops/sec

Tests:

Spread
const a = [1, 2, 3, 4 ,5, 6, {a:1}]; const b = [7, 8, 9, 10, 11, 12, {b:2}] const c = [...a, ...b];
concat
const a = [1, 2, 3, 4 ,5, 6, {a:1}]; const b = [7, 8, 9, 10, 11, 12, {b:2}] const c = a.concat(b);