Скачать или смотреть Change Icon While Changing Theme on Click in React.js

Learn how to dynamically change icons when toggling themes in React.js with a step-by-step guide. Elevate your application's user experience by mastering state management for icons.
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This video is based on the question https://stackoverflow.com/q/71731811/ asked by the user 'Jeff Meliodas' ( https://stackoverflow.com/u/18697327/ ) and on the answer https://stackoverflow.com/a/71732066/ provided by the user 'MLDC' ( https://stackoverflow.com/u/18657502/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Dynamically Change Icons and Themes on Click in React.js

As web design and user experience continue to evolve, being able to create intuitive user interfaces is paramount in modern web applications. One common functionality is the ability to switch themes (light and dark mode) seamlessly and visually indicate this change through icons. In this guide, we will discuss how to dynamically change icons while also allowing users to change the color scheme of your website using React.js.

The Initial Problem

You might have already set up a basic theme toggle functionality in your React application but want to enhance it further. Specifically, you want to implement an icon switch — changing from FaRegMoon to FaRegSun and vice versa when the theme is toggled. Let’s take a look at your current code and how we can improve it!

Step-by-Step Solution

Step 1: Add State for Icon

To manage the icon that will change based on the theme selected, we first need to set up a state variable in the ThemeToggle component.

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

Step 2: Update the changeTheme Function

Next, we need to modify the changeTheme function to accept a parameter representing the name of the icon that will be displayed when toggling the theme.

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

Step 3: Add the Icon Argument in the Click Handler

Now, when you specify an icon for the click event, you need to pass the name of the icon that should be displayed after the theme change.

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

Step 4: Refactor the ThemeToggle Component

With the states and functions set up, we can refactor the ThemeToggle component using a ternary operator. This allows us to easily choose which icon to display based on the current theme.

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

Step 5: Finalize the Change Theme Function

To ensure that the component re-renders with the new icon after every theme switch, don't forget to set the icon state in your changeTheme function, as shown in Step 2.

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

Conclusion

Now, with these steps, you have a fully functional ThemeToggle component that switches between a moon icon and a sun icon while also toggling the website's theme efficiently! Your users will appreciate the visual feedback of their actions, enhancing their overall experience with your application.

Implementing features like this not only makes your site look more polished but also contributes to a better user experience, which is always worth investing time into. Happy coding!