Gain insights into LINQ in C#, learn about lambda expressions, explore common LINQ methods, avoid pitfalls, and refactor code to be more expressive and efficient.

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LINQ is the best feature in C#. If you’re interested in writing more expressive code to work with collections, this course is for you. In this course, you will learn about what LINQ is and what lambda expressions are. You will learn the most common LINQ methods and some common pitfalls to avoid when using LINQ. You will also write your first methods using LINQ and use LINQ to refactor some common constructs.

Getting Started with LINQ in C#

Which of the following is the correct declaration for this method: `public bool IsHorror(Movie movie)`?

Which of the following is the correct declaration for this method: <code>public bool IsHorror(Movie movie)</code>?

Which of the following is the correct declaration of the following method?
```
public List<Movie> FindByReleaseYear(List<Movie> movie, int releaseYear)
```

Which of the following is the correct declaration of the following method?
<pre><code>public List&lt;Movie&gt; FindByReleaseYear(List&lt;Movie&gt; movie, int releaseYear)
</code></pre>

`(Movie movie, bool isCultMovie) => true`

What is the correct lambda expression to replace this method?
```
public bool IsCultMovie(Movie movie)
{
    // Let's not worry about the details here
    return true;
}
```

What is the correct lambda expression to replace this method?
<pre><code>public bool IsCultMovie(Movie movie)
{
 // Let's not worry about the details here
 return true;
}
</code></pre>

Evaluate yourself on what you have learned about Func, Action, and lambda expressions.

Getting Started

LINQ Method: Where

Common LINQ Methods

Syntax & Pitfalls

Refactor with LINQ

What's New in LINQ?

Wrap-up!

Quiz on Lambda Expressions