What does an attribute selector match in Angular?

An attribute selector in Angular is used to match elements based on their specific attributes. This means that when you define a selector like [attributeName], the Angular directive or component that uses this selector will only be applied to elements that have that particular attribute, regardless of the tag name of the element.

For example, if you have an attribute selector [appHighlight], it will target any HTML element that has the appHighlight attribute, allowing you to apply styles or behavior specifically to those elements. This is particularly useful for creating reusable directives that can enhance the functionality of various elements in your application without being tied to a specific tag or element type.

This clear focus on attributes enables developers to create more flexible and modular code, as different elements can share the same behavior or styling by using the same attribute selector, enhancing code reusability.