Benchmark: Add item to array: push vs assign

Script Preparation code:

window.MAX_SIZE = 1000;

Tests:

Push item to an array
const items = []; for (let i = 0; i < MAX_SIZE; ++i) { items.push(i); }
Direct assign an item to an array
const items = []; for (let i = 0; i < MAX_SIZE; ++i) { items[i] = i; }
Direct assign an item to an initialized array
const items = new Array(MAX_SIZE); for (let i = 0; i < MAX_SIZE; ++i) { items[i] = i; }

Rendered benchmark preparation results:

Previous results

Test case name	Result
Push item to an array
Direct assign an item to an array
Direct assign an item to an initialized array

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Latest run results:

Run details: (Test run date: 9 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/115.0

Browser/OS: Firefox 115 on Mac OS X 10.15

Test name	Executions per second
Push item to an array	192190.2 Ops/sec
Direct assign an item to an array	173643.4 Ops/sec
Direct assign an item to an initialized array	218993.4 Ops/sec

Add item to array: push vs assign (version: 0)