Скачать или смотреть How to Loop Through Multiple IDs in jQuery for DOM Manipulation

Learn how to efficiently execute jQuery on several IDs stored in localStorage by utilizing loops and simple coding techniques.
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How to Loop Through Multiple IDs in jQuery for DOM Manipulation

Have you ever needed to manipulate multiple DOM elements based on IDs that you have stored in a string format? If you’re working with JavaScript and jQuery, you might find yourself asking: "How do I loop through several IDs and execute code for each one?" Let’s break down this common challenge and explore a straightforward solution.

Understanding the Problem

You might be storing IDs as a comma-separated string, such as "1,22,3,14". Your goal is to manipulate each ID on the page. For instance:

You want to remove a class from an element.

You want to change the styles of specific elements.

While you may know how to handle a single ID, dealing with multiple IDs requires a bit more effort. That’s where looping comes into play!

The Solution

Here’s a step-by-step guide to looping through multiple IDs using jQuery:

Step 1: Split the String

The first step is to transform the string containing your IDs into an array. This can be easily done using the split function.

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Step 2: Loop Through Each ID

With the array set up, you can now use a for...of loop to iterate through each ID. Inside this loop, you will execute your desired jQuery commands.

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This code does two main things for each ID:

Removes the class plus from the element.

Changes the color to red and makes the text bold.

Step 3: Alternative Approaches

Using a CSS Class

If you prefer a cleaner solution, consider using a CSS class to manage styles instead of inline CSS.

Define Your CSS Class

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Modify JavaScript Code

Instead of applying styles directly in jQuery, just add the highlight class:

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Complete Example

Here’s the complete code bringing everything together:

HTML Structure

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JavaScript Code

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CSS Code

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Conclusion

With this guide, you now have the necessary steps to successfully loop through multiple IDs in jQuery and manipulate the DOM elements effectively. Whether you choose to apply styles directly or through CSS classes, the methods outlined here provide versatility for your web development needs.

By understanding how to effectively utilize loops and jQuery together, you can make your web applications more interactive and user-friendly. Happy coding!