Angular Interview Practice

What is a class selector in Angular?

1. A class selector targets elements with a specific CSS class.

2. A class selector is used for data binding in Angular.

3. A class selector applies styling to all HTML elements.

4. A class selector manages component lifecycle hooks.

The correct answer is: A class selector targets elements with a specific CSS class.

A class selector specifically targets elements that possess a certain CSS class. This is fundamental in Angular as it allows developers to apply specific styles or behaviors to components based on their class attributes. By creating a class selector in a stylesheet, you can manipulate the appearance of elements across your Angular application. For instance, if you define a class in your CSS such as `.active`, you can apply unique styles to any HTML element with the `class="active"` attribute, thus enhancing the visual representation or usability of your application. This approach is widely used to create dynamic user interfaces where component styles change based on user interactions or application state. In Angular, while data binding, lifecycle management, and broader styling approaches exist, these do not directly describe what a class selector is. Therefore, the choice that specifies targeting elements with a specific CSS class aligns perfectly with the definition and practical usage of class selectors in Angular development.