Скачать или смотреть How to Toggle Read More Button in an Array of Elements Using JavaScript

Learn how to effectively toggle the "Read more" button for each element in an array using JavaScript. This guide provides step-by-step instructions to ensure only the related section is affected.
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This video is based on the question https://stackoverflow.com/q/74041846/ asked by the user 'tech27' ( https://stackoverflow.com/u/16651631/ ) and on the answer https://stackoverflow.com/a/74041983/ provided by the user 'Rory McCrossan' ( https://stackoverflow.com/u/519413/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Unlocking the Read More Button Functionality

Are you looking to implement a "Read more" button for items displayed on a webpage but finding that all buttons toggle simultaneously instead of individually? You're not alone! This is a common issue when working with JavaScript and HTML elements. In this guide, we'll tackle that problem by examining a straightforward solution that allows each button to toggle its respective content independently.

The Problem

You have an array of objects, each containing an id, img, title, and description. For each object, you create a corresponding div with a "Read more" button. However, clicking on any button reveals or hides all descriptions rather than just the one associated with that specific button.

Here’s the original array for reference:

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

The Solution

The core of the issue lies in how you're selecting elements associated with the clicked button. By using querySelectorAll(), you're retrieving all instances of the .description_container, leading to all descriptions being toggled.

Steps to Implement the Solution

To fix this, you need to adjust your event listener to target only the related container for the button clicked. Here is a concise guide to doing that:

1. Modify the Event Listener

Instead of selecting all description containers, you can utilize the target property from the event object to find the closest parent .description_container.

Here's the modified JavaScript code:

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

2. Update the CSS

Continue using the same CSS for the "Read more" button to control how it appears. Ensure that the styles for .description_container.active correctly toggle the visibility of the description:

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

3. Example HTML Structure

Here’s how your HTML structure for each item should look:

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

Conclusion

By implementing the steps outlined above, you can now enjoy a fully functional "Read more" button that only affects its related content. This individualized toggling feature enhances the user experience by preventing all descriptions from showing or hiding at once.

Feel free to integrate this solution into your projects and watch your interactivity enhance!

If you have any further questions or need assistance with your code, don't hesitate to reach out!