What are Angular directives and how do I use them?

What are Angular directives and how do I use them?

Angular directives are special markers in your DOM that tell Angular to attach a specified behavior to that DOM element. They can be used to create custom HTML elements or attributes.

Can you give me an example of a custom directive?

Sure! A simple example is a directive that changes the background color of an element. You can create a directive called 'changeColor' that takes a color as an argument.

How do I implement this directive in my Angular app?

To implement it, you would define the directive in your module, then use it in your HTML like this: <div changeColor="'red'">This text will have a red background.</div>.

Are there built-in directives I should know about?

Yes, Angular provides several built-in directives like ngIf, ngFor, and ngModel that are essential for building dynamic applications.