How JavaScript Events Work - Propagation, Delegation, addEventListener & More

In this video, we’ll dive deep into event handling in JavaScript and understand how event listeners work behind the scenes. We’ll explore different types of event handling, the event propagation model, and best practices for managing events efficiently. By the end of this tutorial, you’ll have a solid grasp of how to work with events effectively in your projects.

🚀 What you’ll learn in this video:
🔹 How JavaScript event listeners work and when to use them
🔹 The difference between bubbling, capturing, and delegation
🔹 How to optimize performance and avoid common pitfalls
🔹 Practical examples of handling user interactions dynamically

⏳ Timestamps:
00:00 - Introduction
01:48 - How to use addEventListener correctly
02:25 - Always check if your element exists
02:40 - Exploring the event object
03:35 - Understanding preventDefault and when to use it
04:27 - Event propagation: Bubbling vs. Capturing explained
06:36 - Mastering event delegation for better performance
08:54 - How (and why) to remove an event listener
09:32 - The power of the once property
10:06 - Performance boost with throttling & debounce
10:40 - Handling this context in event listeners
11:05 - Optimizing with the passive property

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