Callback Functions in JS ft. Event Listeners
MindCraft Frontend Web Dev - JS Essential Lecture 15
Course by: MindCraft
In this lecture, we delve into the concept of callback functions in JavaScript, focusing particularly on event listeners. We explore what callback functions are, their advantages, and how they are used in event handling. Additionally, we cover topics like blocking the main thread, creating event listeners, closures in the context of event handling, and best practices for garbage collection and removing event listeners.
Topics Covered:
00:00 - Introduction
00:55 - What is a Callback Function in JavaScript?
01:20 - Advantages of Callback Functions
06:21 - Demo: Using Callbacks with Developer Tools in the Browser
08:18 - Blocking the Main Thread in JavaScript
10:18 - Creating Event Listeners in JavaScript
13:30 - Closures in Event Listeners
19:25 - Garbage Collection and Removing Event Listeners
21:59 - Teaser for the Next Video
22:43 - Thank You for Watching Namaste JavaScript
This video provides a comprehensive understanding of callback functions in JavaScript, their role in event handling, and their impact on asynchronous programming. It equips you with practical knowledge essential for developing interactive and responsive web applications.