Understanding Scope, Hoisting, and Closures like...

🔹 What is Scope? Scope defines the accessibility of variables in your code. Simply put: Scope decides where in your code a variable can be used. In JavaScript, every variable has a “boundary.” Outside this boundary, the variable is unavailable. Why is Scope important? Prevent variable conflicts Manage memory efficiently Make code predictable Main types of Scope: Global Scope → accessible from anywhere Function Scope → accessible only within a function Block Scope → accessible within {} (using le