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Directives and pipes are incredible and often undervalued features of the Angular framework. They allow us to write efficient code, improve application performance, and omit code duplications.

In this course, you will learn about the theory and the working mechanisms of built-in directives and pipes in Angular. You’ll also implement some custom directives and pipes to learn about their real-world application cases. With this course, you will improve your Angular skills and refine your project’s codebase to increase the performance and readability of your code.

Directives and Pipes in Angular

Now it’s time to practice using the `NgIf` directive.

## Objectives
The application provided should display a few users. However, there are some things we need to ensure:
1. Only users that are marked “premium” should be visible.
2. Display “Unknown” in place of any user that doesn’t have a name.
3. Display the “Loading…” message for the first ten seconds while the first user’s data loads.


## Task
Please write the code below:

Now it’s time to practice using the `NgIf` directive.

# Objectives
The application provided should display a few users. However, there are some things we need to ensure:
1. Only users that are marked “premium” should be visible.
2. Display “Unknown” in place of any user that doesn’t have a name.
3. Display the “Loading…” message for the first ten seconds while the first user’s data loads.


# Task
Please write the code below:

Let’s practice working with the `NgIf` directive.


Exercise: The Built-in `NgIf` Directive

Let’s practice working with the `NgIf` directive.

Getting Started

Directives

Test: Built-in Directives

Attribute Directives

Test: Attribute Directives

Structural Directives

Test: Structural Directives

Advanced Techniques Using Directives

Test: Advanced Directives

Directives Summary

Pipes

Test: Pipes

Pipes summary

Exercise: The Built-in `NgIf` Directive

Objectives

Task