Getting Started with LINQ in C#

INTERACTIVE COURSE

Getting Started with LINQ in C#

Intermediate

44 Lessons

4h 20min

Certificate of Completion

AI Explanations

AI Explanations

Getting Started with LINQ in C#

52 Playgrounds

20 Illustrations

Takeaway Skills

Learn what LINQ is and what lambda expressions are.

Use the most common LINQ methods to work with lists and arrays.

Identify and fix some common pitfalls when using LINQ with lists and arrays.

Use LINQ to refactor conditionals.

Learn new LINQ methods and overloads in .NET 6.

Course Overview

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.

Course Content

1

Getting Started

What Is LINQ?LINQ and Declarative Programming

2

LINQ Method: Where

LINQ and IEnumerable Type What Are Extension Methods?Quiz on Extension Methods What Are Lambda Expressions?Quiz on Lambda Expressions How to Use the Where Method Exercise: Find Your Favorite Movies Exercise: Rewrite Our First Example Using Lambda Expressions LINQ and Immutability LINQ and Laziness

3

Common LINQ Methods

The Select Method Any and All Methods Quiz on LINQ Methods Exercise: Implement Your Own Any Method GroupBy and OrderBy Methods First and FirstOrDefault Methods Take and Skip Methods Exercise: Write a Pagination Method Exercise: Refactor From Loops to LINQ Sum, Min, and Max Methods SelectMany Method Aggregate Method The Distinct Method Intersect, Union, and Except Methods Exercise: Implement the Exactly Method Exercise: Use LINQ Methods Exercise: Sort by Occurrences

4

Syntax & Pitfalls

Query-like Syntax Common Mistakes and What to Do Exercise: Remove Mistakes

5

Refactor with LINQ

Replace Comparisons with Any Replace a Set of Choices with FirstOrDefault Validate Objects with All Exercise: Add a Recommended Movie

6

What's New in LINQ?

6 Lessons

7

Wrap-up!

1 Lesson

COURSE AUTHOR

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