Benchmark: concat vs push in various ways

Tests:

concat
let x = []; let y = [1, 2, 3, 4, 5, 6, 7]; for (let ii = 0; ii < 1000; ii++) { x = x.concat(y); }
push with rest params
let x = []; let y = [1, 2, 3, 4, 5, 6, 7]; for (let ii = 0; ii < 1000; ii++) { x.push(...y); }
push in for loop
let x = []; let y = [1, 2, 3, 4, 5, 6, 7]; for (let ii = 0; ii < 1000; ii++) { for (let item of y) { x.push(item); } }
push with forEach
let x = []; let y = [1, 2, 3, 4, 5, 6, 7]; for (let ii = 0; ii < 1000; ii++) { y.forEach(num => x.push(num)); }

Rendered benchmark preparation results:

Previous results

ⓘ Get performance results from real users on your website with Request Metrics.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36

Browser/OS: Chrome 86 on Windows

concat vs push in various ways (version: 0)