How can I improve the performance of my vanilla JavaScript code?

How can I improve the performance of my vanilla JavaScript code?

There are several ways to enhance the performance of your vanilla JavaScript code. Here are a few tips: 1. Minimize DOM manipulations, 2. Use event delegation, 3. Optimize loops, and 4. Leverage caching.

What do you mean by minimizing DOM manipulations?

Minimizing DOM manipulations means reducing the number of times you interact with the DOM, as it's a costly operation. Instead of updating the DOM multiple times, try to batch your changes and apply them all at once.

Can you explain event delegation?

Event delegation is a technique where you attach a single event listener to a parent element instead of multiple listeners to child elements. This improves performance by reducing the number of event listeners and leveraging event bubbling.

What are some common mistakes that can affect performance?

Common mistakes include excessive use of global variables, not using local variables, and not properly managing memory. Also, avoid using synchronous XMLHttpRequests as they can block the main thread.