2 Critical JavaScript Concepts You Need to Know for Interviews: Closures & Memory

In this video, I share insights into common JavaScript interview question focusing on closures and memory allocation. Through real-world examples, I explain how to identify and resolve memory leaks in code. You'll learn about the significance of closures, block scope with let and const, and effective memory management in JavaScript. I also highlight essential concepts from the official Mozilla documentation and discuss garbage collection techniques like Mark and Sweep, helping you prepare for your next technical interview.

00:00 Introduction and Overview
00:35 Understanding Closures
01:12 Memory Allocation and Garbage Collection
01:17 Example Function with Memory Leak
02:00 Explaining Closures with Examples
02:33 Block Scope and Variable Declarations
07:21 Preventing Memory Leaks
08:34 Garbage Collection in JavaScript