Run results for: Array => Spread vs concat

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Browser: Chrome 74

Operating system: Linux

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
spread	8243626.0 Ops/sec
concat	422774.0 Ops/sec

Tests:

spread
const arr1 = [1,2,3,4,5,6,7,8,9,10,11,12] const arr2 = [11,12,13,14,15,16,17,18,19,20] return [...arr1, ...arr2]
concat
const arr1 = [1,2,3,4,5,6,7,8,9,10,11,12] const arr2 = [11,12,13,14,15,16,17,18,19,20] return arr1.concat(arr2)