JavaScript Hoisting Tutorial

About This Tutorial

Hoisting is JavaScript's behavior of moving variable and function declarations to the top of their scope before code execution. Understanding hoisting helps you avoid common bugs and write more predictable code.

What You'll Learn

• What hoisting is and how it works
• How var, let, and const are hoisted differently
• Function hoisting vs function expressions
• The Temporal Dead Zone (TDZ)
• Best practices to avoid hoisting pitfalls

Prerequisites

You should be comfortable with JavaScript variables, functions, and basic scope concepts before starting this tutorial.