JavaScript Data Types Tutorial

About This Tutorial

Understanding data types is fundamental to JavaScript programming. JavaScript has two categories of data types: primitives (like numbers and strings) and reference types (like objects and arrays). This tutorial covers all data types, type checking, type coercion, and best practices for working with different types of data.

What You'll Learn

• All seven primitive data types in JavaScript
• Reference types: objects, arrays, and functions
• How to check types with typeof and other methods
• Type coercion and conversion
• Common type-related pitfalls and how to avoid them

Prerequisites

This tutorial is beginner-friendly. Basic familiarity with JavaScript syntax is helpful but not required.