Run results for: push vs spread vs concat two big arrays 100000

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36

Browser: Chrome 70

Operating system: Mac OS X 10.14.1

Device Platform: Desktop

Date tested: 5 years ago

Tests:

push
const n = 100000; const a1 = Array(n).fill(2); const a2 = Array(n).fill(3); a1.push(...a2);
spread
const n = 100000; const a1 = Array(n).fill(2); const a2 = Array(n).fill(3); [...a1,...a2]
concat
const n = 100000; const a1 = Array(n).fill(2); const a2 = Array(n).fill(3); a1.concat(a2);