Run results for: Array deconstruction vs Array push 2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36

Browser: Chrome 115

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Array push	16.4 Ops/sec
Array deconstruction	16.0 Ops/sec

Tests:

Array push
let commentsByPostId = {} const maxInterations = 100000 for (let i = 0; i < maxInterations; i++){ const postId = Math.floor(Math.random() * maxInterations).toString() const comments = commentsByPostId[postId] ?? [] comments.push({ id: i, content: `Test - ${i}` }) commentsByPostId[postId] = comments }
Array deconstruction
let commentsByPostId = {} const maxInterations = 100000 for (let i = 0; i < maxInterations; i++){ const postId = Math.floor(Math.random() * maxInterations).toString() commentsByPostId[postId] = [ ...commentsByPostId[postId] ?? [], ...[{ id: i, content: `Test - ${i}` }] ] }