Solution Review: Destroy the Button
Explore efficient DOM manipulation by using event delegation to handle button clicks that create and remove buttons dynamically. Understand the differences between innerHTML and appendChild methods to optimize how you update the DOM in JavaScript.
We'll cover the following...
Solution #
Explanation
The first approach that comes to mind is to attach an event listener to the button; it can destroy itself when clicked and create two new buttons in its place. However, this is not an efficient approach since you’ll have to add the event handler to each button created.
A smart way to solve this problem is to make use of event delegation. We attach the event handler to the parent div instead of each button. In our solution, we are attaching the event handler for the click event to the parent div on line 2. ...