📊 JavaScript Data Types Explained: Primitives vs Reference Types
🧩 Data Types
Everything in JavaScript is data — and understanding data types is key to writing effective, bug-free code. In this section, you’ll explore the different types of data you can work with and how JavaScript handles them behind the scenes.
You’ll learn:
The 7 main primitive data types: Number, String, Boolean, Null, Undefined, Symbol, and BigInt
What reference types like objects and arrays are
How to check a data type using typeof
Why knowing data types helps you write cleaner, more predictable code
This foundational knowledge will help you avoid common pitfalls and level up your coding skills fast!
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