Why can't JavaScript find your variable? 🔍 Scope & Scope Chain Explained
In this video, I break down Scope and Scope Chain in JavaScript — one of the most important concepts for interviews AND real-world coding.
What is Scope in JavaScript?
Types of Scope — Global, Function, Block
How the Scope Chain works (engine-level)
Lexical Scoping explained simply
var vs let vs const — scope differences
Interview questions with answers
This is the foundation for understanding Closures, Hoisting, and the Execution Context.
Tags: #JavaScript #Scope #ScopeChain #JavaScriptInterview #MERNStack #LearnJavaScript #FrontendDeveloper