Скачать или смотреть How to Switch fas fa Icons with JavaScript for Dark/Light Mode

Learn how to seamlessly switch `fas fa` icons in your web application for dark and light modes using JavaScript. Follow this guide for step-by-step instructions and tips!
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This video is based on the question https://stackoverflow.com/q/63646615/ asked by the user 'Rohit Manjunath' ( https://stackoverflow.com/u/10862949/ ) and on the answer https://stackoverflow.com/a/63646701/ provided by the user 'Always Helping' ( https://stackoverflow.com/u/13669048/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Switch fas fa Icons with JavaScript for Dark/Light Mode

Creating a user-friendly interface involves more than just aesthetics. A popular feature nowadays is the dark/light mode toggle, allowing users to switch themes based on their preference. However, if you encounter issues with icon transitions in this mode—specifically, if your fas fa icon doesn’t change as expected—this guide is for you!

The Problem

You’ve set up a toggle switch with FontAwesome icons indicating a change from light to dark mode (moon to sun). While the modes switch successfully, the icon doesn’t change as anticipated. This can be frustrating, especially if you're new to JavaScript.

Code Snippet Overview

Here's a simplified version of your code:

[[See Video to Reveal this Text or Code Snippet]]

The Solution

You're close to accomplishing your goal, and the solution lies in using the correct methods for changing the icon classes. Here’s how to effectively switch icons:

1. Replace toggleClass with addClass and removeClass

Using toggleClass will attempt to add a class while retaining the existing one. To clearly change from one icon to another, you should explicitly use removeClass and addClass.

Corrected Code Snippet

[[See Video to Reveal this Text or Code Snippet]]

2. CSS Adjustments for Visibility

You may also need to ensure your icons are visible against your dark/light mode backgrounds. For instance:

[[See Video to Reveal this Text or Code Snippet]]

3. HTML Structure

Your HTML structure should already be set up correctly; just ensure you're using the proper elements. Here's how the toggle button looks:

[[See Video to Reveal this Text or Code Snippet]]

4. Live Demo

If you want to see it in action, create the HTML, CSS, and JavaScript files as shown, ensuring jQuery and FontAwesome are properly linked:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Switching icons based on user interaction can enhance the user experience significantly. By correctly implementing removeClass and addClass, your icons will now reflect the selected mode accurately. Remember, programming is all about learning through practice, so don't get discouraged by these small errors!

If you have any further questions or run into issues, feel free to ask. Happy coding and have a fantastic day!