jQuery .toggleClass() Method

Posted in jQuery Tutorial

Updated on May 20, 2024

By Mari Selvan

👁️ 22 - Views

⏳ 4 mins

💬 0

Photo Credit to CodeToFun

🙋 Introduction

jQuery offers a myriad of methods to manipulate the appearance and behavior of HTML elements dynamically. One such versatile method is .toggleClass(), which allows you to add or remove one or more classes from selected elements with ease. Understanding how to leverage this method effectively can significantly enhance your ability to create interactive and dynamic web pages.

In this comprehensive guide, we'll explore the intricacies of the jQuery .toggleClass() method, providing clear examples to illustrate its functionality.

🧠 Understanding .toggleClass() Method

The .toggleClass() method is designed to toggle the presence of one or more CSS classes on selected elements. It simplifies the process of adding or removing classes based on certain conditions, providing a convenient way to control the styling and behavior of elements dynamically.

💡 Syntax

The syntax for the .toggleClass() method is straightforward:

syntax.js

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$(selector).toggleClass(className, switch)

selector: Specifies the elements to which the class should be added or removed.
className: The name of the class(es) to toggle.
switch: A boolean value indicating whether the class should be added (true) or removed (false). If omitted, the class will be toggled, i.e., added if it's not present, and removed if it is present.

📝 Example

Toggling a Class on Click:

Suppose you have a button that, when clicked, should toggle a specific class on a paragraph. You can achieve this using the .toggleClass() method as follows:
index.html
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```
<button id="toggleButton">Toggle Class</button>
<p>This is a paragraph.</p>
```
example.js
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```
$("#toggleButton").click(function() {
  $("p").toggleClass("highlight");
});
```
This will add the class highlight to the paragraph when the button is clicked, and remove it if it's already present.
Conditional Toggling Based on State:

You can also toggle a class based on certain conditions. For instance, let's toggle a class based on whether a checkbox is checked:
index.html
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```
<input type="checkbox" id="checkbox"> Toggle Class
<p>This is a paragraph.</p>
```
example.js
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```
$("#checkbox").change(function() {
  $("p").toggleClass("highlight", $(this).is(":checked"));
});
```
This will add the class highlight to the paragraph when the checkbox is checked, and remove it when unchecked.
Toggling Multiple Classes:

The .toggleClass() method can toggle multiple classes simultaneously by specifying them as space-separated strings. For example:
index.html
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```
<button id="toggleButton">Toggle Classes</button>
<p>This is a paragraph.</p>
```
example.js
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```
$("#toggleButton").click(function() {
  $("p").toggleClass("highlight bold italic");
});
```
This will toggle the classes highlight, bold, and italic on the paragraph each time the button is clicked.

🎉 Conclusion

The jQuery .toggleClass() method is a powerful tool for dynamically adding or removing classes from HTML elements. Whether you want to toggle classes based on user interactions, state changes, or specific conditions, this method provides a convenient and efficient solution.

By mastering its usage, you can enhance the interactivity and visual appeal of your web pages effortlessly.