Run results for: JS array union large arrays - concat vs spread

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Browser: Chrome 74

Operating system: Mac OS X 10.14.5

Device Platform: Desktop

Date tested: 5 years ago

Tests:

Array concat
const a = ['a','b','c'] const b = [1,2,3,4] const c = a.concat(b)
Array spread
const a = ['a','b','c'] const b = [1,2,3,4] const c = [...a, ...b]
Array concat - large numbers
const a = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','x','y','z','w'] const b = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20] const c = a.concat(b)
Array spread - large numbers
const a = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','x','y','z','w'] const b = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20] const c = [...a,...b]