Скачать или смотреть Lecture 15 || addClass , removeClass|| Create TABS and how change elements resources with DevTools

In web development, particularly when working with JavaScript and jQuery, "addClass" and "removeClass" are methods used to manipulate the classes of HTML elements dynamically. These methods allow you to add or remove one or more CSS classes from an element's class attribute, altering its appearance or behavior on the webpage.

Here's a brief explanation of each:

addClass: This method is used to add one or more CSS classes to the selected elements. It takes one or more class names as arguments and adds them to the existing classes of the elements. If an element already has a class, addClass will append the new class to the existing classes.

removeClass: This method is used to remove one or more CSS classes from the selected elements. It takes one or more class names as arguments and removes them from the existing classes of the elements. If an element doesn't have the specified class, removeClass will not throw an error.

These methods are commonly used in JavaScript and jQuery for various purposes, including toggling CSS styles, applying animations, controlling visibility, and implementing interactive features on web pages.

Practicing with addClass and removeClass involves experimenting with different scenarios where you need to dynamically change the appearance or behavior of elements based on user interactions, events, or other conditions. You can create exercises or small projects to practice these methods, such as:

Building a dropdown menu where adding and removing classes controls its visibility.
Creating a slideshow where adding and removing classes controls the transition between slides.
Implementing a form validation feature where adding and removing classes highlight valid or invalid input fields.
Building a tabbed interface where adding and removing classes switches between tabs.
By practicing with addClass and removeClass, you'll become more proficient in manipulating the DOM dynamically and creating interactive web experiences.
Create tabs on HTML" refers to the process of designing and implementing a user interface feature where multiple content sections are organized into tabs. Each tab typically represents a different category or topic, and when clicked, it displays its corresponding content while hiding others. This is commonly achieved using HTML, CSS, and JavaScript, where HTML is used to structure the tabs, CSS is used for styling, and JavaScript is often utilized for adding interactivity, such as switching between tabs.

"Change resources from inspect element" refers to the ability to modify or manipulate the resources (such as HTML, CSS, and JavaScript files) that are loaded by a webpage using the browser's built-in developer tools. When you inspect an element on a webpage (usually by right-clicking and selecting "Inspect" or pressing Ctrl+Shift+I), you can view the underlying code and resources associated with that element. From there, you can make temporary changes to the code, such as modifying HTML content, adjusting CSS styles, or even modifying JavaScript functions. These changes are only visible locally in your browser and are not permanent modifications to the actual website. It's often used for debugging, testing, or experimenting with webpage design and functionality.