Function Expression in JavaScript 🤯 Is just variable? Explained Simply

Did you know that a Function Expression in JavaScript is just a variable until the JS engine executes it? 🤔
In this short video, I’ll break down what function expressions really are, how they differ from function declarations, and why understanding this is crucial.

You’ll learn:

What exactly a Function Expression is

Why it behaves like a variable assignment

How the JavaScript engine handles it during execution

The difference between Function Declaration vs Function Expression

A simple example to make it crystal clear

👉 By the end of this video, you’ll understand why function expressions can’t be used before they’re defined — unlike function declarations. Perfect for JavaScript beginners, interview prep, and developers who want deeper JS knowledge.

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Видео Function Expression in JavaScript 🤯 Is just variable? Explained Simply канала NA_DEV (Not An Average Dev)