C# 1001 notes

🔸 HTTP/3 support in .NET 6

🔸 New LINQ Methods in .NET 6

🔸 Properly Disposing Objects

🔸 Code Coverage in .NET

🔸 Useful Libraries for .NET projects

Всем хороших выходных :)

✨ Here is a solution for the #challenge above

#challenge

💻 Perfect Number | #easy

Create a function that tests whether or not an integer is a perfect number. A perfect number is a number that can be written as the sum of its factors, (equal to sum of its proper divisors) excluding the number itself.

For example, 6 is a perfect number, since 1 + 2 + 3 = 6, where 1, 2, and 3 are all factors of 6. Similarly, 28 is a perfect number, since 1 + 2 + 4 + 7 + 14 = 28.

Examples:

CheckPerfect(6) ➞ true
CheckPerfect(28) ➞ true
CheckPerfect(496) ➞ true
CheckPerfect(12) ➞ false
CheckPerfect(97) ➞ false

🏆 Leave your solutions in the comments. The solution will be posted below in a couple of hours 👇

#interview

📝 When to use Finalize vs Dispose?

🔸 The finalizer method is called when your object is garbage collected and you have no guarantee when this will happen (you can force it, but it will hurt performance).

🔸 The Dispose method, on the other hand, is meant to be called by the code that created your class so that you can clean up and release any resources you have acquired (unmanaged data, database connections, file handles, etc) the moment the code is done with your object.

The standard practice is to implement IDisposable and Dispose so that you can use your object in a using statement such as using(var foo = new MyObject()) { }.

And in your finalizer, you call Dispose, just in case the calling code forgot to dispose of you.

#post

📝 What is the difference between continue and break statements in C#?

🔸 using break statement, you can jump out of a loop

🔸 using continue statement, you can jump over one iteration and then resume your loop execution

#post

Have a great weekend and perfect first code 😉

💬 Actually, I vote for this solution to this #challenge instead.

Thx to Roman!

✨ Here is a solution for the #challenge above

#challenge

💻 Capitalize the First Letter of Each Word | #easy

Create a function that takes a string as an argument and converts the first character of each word to uppercase. Return the newly formatted string.

Examples:

MakeTitle("This is a title") ➞ "This Is A Title"
MakeTitle("capitalize every word") ➞ "Capitalize Every Word"
MakeTitle("I Like Pizza") ➞ "I Like Pizza"
MakeTitle("PIZZA PIZZA PIZZA") ➞ "PIZZA PIZZA PIZZA"

For your convenience: dotnetfiddle.

🏆 Leave your solutions in the comments. The solution will be posted below in a couple of hours 👇

#interview

#post

Now, for the final post in this mini-series, let's turn our attention to a feature that was originally scheduled for release in C# 10, but didn't quite make the cut: required properties.

Read more...

#quiz

#book

Программируем на C# 8.0
Гриффитс И.

C# — универсальный язык, который может практически всё! Иэн Гриффитс рассказывает о его возможностях с точки зрения разработчика, перед которым стоит задача быстро и эффективно создавать приложения любой сложности.

Множество примеров кода научат работать с шаблонами, LINQ и асинхронными возможностями языка. Вы разберетесь с асинхронными потоками, ссылочными типами, допускающими значение NULL, сопоставлениями с образцом, реализациями по умолчанию для метода интерфейса, диапазонами и синтаксисом индексации и многим другим.

Скачать книгу

#humor #newsletter

Богатая неделя на материалы из мира .NET:

🔸 Introduction to System.Text.Json Through Examples

🔸 Async processing of long-running tasks in ASP.NET Core

🔸 Migration to ASP.NET Core in .NET 6

🔸 HTTP/3 support in .NET 6

🔸 Azure Table Storage with ASP.NET Core

🔸 SQL SERVER – Troubleshooting High CPU

🔸 6 Essential Tools to Detect and Fix Performance Issues in .NET

🔸 C# 10.0: File Scoped Namespaces – Get More Space For Your Code

🔸 ASP.NET Core updates in .NET 6 Release Candidate 1

🔸 Backend For Frontend Authentication Pattern with Auth0 and ASP.NET Core

Учение свет, но отдыхать тоже не забывайте 😉

✨ Here is a solution for the #challenge above

#challenge

💻 Check if a Number is Prime | #easy

Create a function that returns true if a number is prime, and false otherwise. A prime number is any positive integer that is evenly divisible by only two divisors: 1 and itself.

The first ten prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

Examples:

isPrime(31) ➞ true
isPrime(18) ➞ false
isPrime(11) ➞ true

For your convenience: dotnetfiddle.

🏆 Leave your solutions in the comments. The solution will be posted below in a couple of hours 👇

#interview