33 JavaScript Concepts Every Developer Should Know - Part 3 Value Types and Reference Types

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How much of JavaScript do you really think you know? You probably know how to write functions, understand simple algorithms, and can even write a class. But do you know what a typed array is?

You don't need to know all of these concepts right now, but you will eventually need them later in your career. That’s why I recommend bookmarking this list, because chances are, you’ll encounter one of these topics, and then you’re gonna want a tutorial to fully understand it.

It’s important to note that this list was inspired from the following repository: https://github.com/leonardomso/33-js-concepts

1. Call Stack

Visit the previous part 33 JavaScript Concepts Every Developer Should Know - Part 1 Call Stack.

2. Primitive Types

Visit the previous part 33 JavaScript Concepts Every Developer Should Know - Part 2 Primitive Types.

3. Value Types and Reference Types

Variables that are assigned a non-primitive value are given a reference to that value. That reference points to the object’s location in memory. The variables don’t actually contain the value. —Source

Tutorials

• 📜 Explaining Value vs. Reference in Javascript — Arnav Aggarwal

• 📜 Primitive Types & Reference Types in JavaScript — Bran van der Meer

• 📜 Value Types, Reference Types and Scope in JavaScript — Ben Aston

4. Implicit, Explicit, Nominal, Structuring and Duck Typing

Visit the next part 33 JavaScript Concepts Every Developer Should Know - Part 4 Implicit, Explicit, Nominal, Structuring and Duck Typing .