# Working with Functions and Arrays

No types to declare, and arrays that grow and shrink.

![Cheat sheet: Working with Functions and Arrays](https://fsdtrainingmedia.blob.core.windows.net/public/images/2026/11/4952f173b45c42da87095c298f2b976f.webp)

- Category: JavaScript
- Level: Apprentice
- Tags: JavaScript
- Updated: November 3, 2026

Source: https://www.ask-codey.com/cheat-sheets/java-vs-javascript-working-with-functions-cheat-sheet