Скачать или смотреть How to Use JavaScript to Change Background Color of Buttons on Click

Learn how to implement a simple JavaScript solution to dynamically change the background color of buttons when clicked, using event listeners and color toggling.
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This video is based on the question https://stackoverflow.com/q/65630594/ asked by the user 'Naruto Saitama' ( https://stackoverflow.com/u/11676138/ ) and on the answer https://stackoverflow.com/a/65630761/ provided by the user 'Raul Sauco' ( https://stackoverflow.com/u/2557030/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Change Background Color of Buttons with JavaScript

Are you looking to enhance user interaction on your webpage by allowing buttons to change color upon being clicked? This guide will guide you through the simple steps of accomplishing this using JavaScript. With a few lines of code, you'll learn how to toggle the background color of buttons, giving your users a more engaging experience. Let’s dive into the problem and the solution!

The Problem

The initial requirement is to create a series of buttons that change background color when clicked. Specifically, the following points need to be addressed:

Individual Button Experimentation: Each button should change to red when clicked independently, reverting back to its original color on subsequent clicks.

Group Action: If one clicks the “All” button, all buttons should immediately turn red.

Here’s an example of the HTML structure for the buttons:

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

The Solution

To achieve the required functionality, we will make use of JavaScript event listeners to handle click events and dynamically change the background colors of the buttons. Here's how we can implement this:

1. Select Elements

First off, we will select our buttons. In this step, we identify the "All" button as well as the other individual buttons.

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

2. Event Listener for the "All" Button

Next, we need to assign an event listener to the "All" button that will change the background color of all buttons to red.

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

3. Individual Button Click Event

For each of the individual buttons that should respond to clicks, we do the same. Here’s how you can set an event listener for them:

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

4. Color Update Function

To avoid repeating code, we can create a function that updates the background color based on whether it is currently red or its original color.

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

5. Full HTML and JavaScript Example

Below is a complete example of how the HTML and JavaScript code fits together:

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

Conclusion

With the above code, you've successfully set up a set of buttons that change color on click using JavaScript! It’s a simple yet effective way to enhance your web pages. By following this guide, you now have the foundational knowledge to utilize event listeners for dynamic interactions in your applications.

Now, go ahead and implement these techniques in your own projects to create a more interactive experience for your users! Happy coding!