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How to Change Class Name with Logic Conditions in jQuery

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Описание к видео How to Change Class Name with Logic Conditions in jQuery

Learn to modify HTML class names dynamically with jQuery based on other elements' values. Boost your web development skills!
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This video is based on the question https://stackoverflow.com/q/70494819/ asked by the user 'B4b4j1' ( https://stackoverflow.com/u/6113040/ ) and on the answer https://stackoverflow.com/a/70495196/ provided by the user 'Yagnik Sangani' ( https://stackoverflow.com/u/16107737/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

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Introduction

Have you ever faced the challenge of updating a class name in your HTML dynamically based on conditions derived from other HTML elements? If you are working with jQuery and have encountered this issue, you are not alone. Many developers find it tricky to get their scripts working as they intended. In this guide, we’ll explore how to modify the class name of a div based on the text content of another div. This solution is particularly useful for projects utilizing WordPress and Elementor.

The Problem

You have a specific HTML structure where you need to change the class name of a .div-overlay based on the text content found within the .category-item. Specifically, you should change the class name to "events" or "conferences" depending on the condition.

Here’s a brief look at your initial HTML structure:

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

Your initial attempt involved using jQuery, but it was not successful due to syntax errors and logic problems. Let’s break down the solution.

The Solution

To achieve your goal of modifying the class based on the category-item content, follow these steps:

Step 1: Setting Up jQuery

Make sure you include the latest version of jQuery in your project. You can do this by adding the following script tag within your HTML <head>:

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

Step 2: Write the jQuery Script

You want to iterate through each .category-item element and update the class of its parent .div-overlay. Here's how to correctly write the jQuery script:

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

Explanation of the Code

$(document).ready(): Ensures that your jQuery code runs only after the document is fully loaded.

$(".category-item").each(): Loops through each element with the class .category-item.

var cat_val = $(this).html(): Retrieves the text value of the current category-item.

$(this).parents('.div-overlay').addClass(cat_val.toLowerCase()): Finds the parent div with class div-overlay and adds a new class based on the text value (converted to lowercase).

Step 3: Putting It All Together

Here’s how your complete HTML structure should look with the jQuery included:

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

Conclusion

With the steps laid out above, you can now dynamically change the class names of .div-overlay elements based on the text content of their associated .category-item. This approach not only enhances your web development skills but also ensures your elements behave as expected, improving the user experience on your site. Happy coding!

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