Run results for: concat vs spread funcking operator

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36

Browser: Chrome 70

Operating system: Linux

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
concat	2602218.2 Ops/sec
spread	1665508.6 Ops/sec

Script Preparation code:

const a = [1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,0]
const b = ['a','b','c','d','e','f','g','h','i','a','a','a','a','a','a','a','a','a','a','a','a']

Tests:

concat
const a = [1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,0] const b = ['a','b','c','d','e','f','g','h','i','a','a','a','a','a','a','a','a','a','a','a','a'] const result = a.concat(b)
spread
const a = [1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,0] const b = ['a','b','c','d','e','f','g','h','i','a','a','a','a','a','a','a','a','a','a','a','a'] const result = [...a, ...b]