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Software developmentC# Course: Clean Coding Principles

C# Course: Clean Coding Principles

This principle basically states that you should allow users to add new functionalities without changing existing code. But as application grows things start messing up and it becomes hard to manage the code. Growing business needs and bad architecture design will lead us to further problems of maintaining and testing. In this article, we will discuss some very cool tips for writing clean and concise in C# code for more maintainability and understanding.

Produced by developers who are not in your company anymore. If the value is of reference type, it will return itsTyperather. So, we might need to override the defaultToString()method in the record if we want to print the reference type. Now, what if there is one more derived class that wants to overrideyourrecord’sToString()method but you don’t want to allow that? StyleCop provides value by enforcing a common set of style rules for C# code. StyleCop will continue to ship with a single, consistant set of rules, with minimal rule configuration allowed.

When coming up with a software project solution to a problem, you normally discuss the problem and potential solutions as a team. When choosing a solution, you should always choose the project with the least assumptions as this will be the most accurate choice to implement. If there are a few fair assumptions, the more assumptions you are having to make, the more likely it is that your design solution is flawed. When using disposable classes, you should always call the Dispose() method to cleanly dispose of any resources that are in use.

how to write cleaner code in C#

This is one case where your would like to add comments. Do remember that maintaining comments will become a task as well. A good name helps other developers to understand the context and usage of the variable/method. Here is how you would want to name your variables. First things first, Choose the Best IDE Available for your Tech Stack. In our case, Visual Studio is one of the most popular and betters IDEs for C#.

Tip 5: Use expression bodied Methods

Connect and share knowledge within a single location that is structured and easy to search. Dedicated rules to detect vulnerabilities including ones frequently occurring in the OWASP and CWE guidelines. I’ve been professionally architecting and implementing https://globalcloudteam.com/ software for nearly 7 years, primarily based on the .NET platform. I’m passionate about building rich and powerful applications using modern technologies. The level is determined by a majority opinion of students who have reviewed this class.

If there is a problem with a method, you can quickly isolate it and fix it. That is much harder to do if the method is long and complex. The Boy Scout Rule is a coding principle that says that when you’re working on code, you should leave it in a better state than when you started working on it. This means taking the time to clean up any messes, testing your code, and making sure everything works as it should.

  • In above snippet, we are declaring some extra variables that we don’t really need to declare.
  • One method would encrypt a string, and the other method would decrypt the string.
  • Whenever a change must be made, changes to one module will not unexpectedly break or change another module’s functionality.
  • We usually create constructors to initial properties like below.
  • One of the most straightforward solutions is to find a common piece of code and move it into a separate method using the Extract Method refactoring .
  • However, if the objective is to log an exception then use throw; to pass the buck to the caller.

Basically, the first letter of the first word of the variable will be in lower case, and the first letter of every other word that follows should be in upper case. You will have to use this notation while naming your local variables and method arguments. This bad practice consists of “contaminating” the globals. This is not a good thing because you could have problems and even crash with another library.

It has been written in such a way that the readers can gain knowledge without getting overwhelmed by the technical terms. Suitable for both beginners and advanced learners. Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks. If you buy a Leanpub book, you get free updates for as long as the author updates the book!

Tips for Writing Clean Code

While they are not identical concepts, DIP keeps high-level modules from knowing the details of its low-level modules and setting them up. A huge benefit of this is that it reduces the coupling between modules. Coupling is a very bad development pattern because it makes your code hard to refactor. Functions should do one thingThis is by far the most important rule in software engineering. When functions do more than one thing, they are harder to compose, test, and reason about. When you can isolate a function to just one action, they can be refactored easily and your code will read much cleaner.

It’s a good practice to handle such errors and log it to a table or disk. Starting with C# 6, the String Interpolation feature was introduced. This provides a more readable and cool syntax to create formatted strings. Here is a small function that takes in a Student object as parameter and checks for the null object. If null, return a new Object with data, else return the same object. You really don’t want to just ‘throw ex’ the exception after catching it and lose the stack trace data.

By not using private/protected members, they are susceptible to being modified and this can cause errors in the code. When declaring a variable, we should use a name that makes sense, that is easy to remember and that is easy to pronounce.

Add Comments Whenever Neccesary

String interpolation is new feature added to C# 6.0. Before C# 6.0 we have to use string concatenation and string placeholders for that purpose. After C# 6.0 string interpolation is preferable, cleaner and more efficient way to interpolate dynamic values in strings.

how to write cleaner code in C#

A God class is a class that tries to accomplish everything, usually by extending another class or classes. They have many methods and properties, and they typically have no clear responsibility. These classes are hard to understand, hard to maintain, and hard to test. They’re often the result of code duplication, and they’re a significant problem in software development. At a glance, any developer could tell you what that block of code does, so the comment we added offers zero value or help. In fact, all it serves to do is clutter our code by adding more distractions.

How to Fix the Windows Stop Code Memory Management BSOD

Common functionality that is correctly grouped together is known to be highly cohesive. For example, if you look at the Microsoft System.Diagnostics namespace, you will find that it only contains code that pertains to diagnostics. It would not make sense to include collections and filesystem code in the Diagnostics namespace. Meaningful comments are comments that express the programmer’s intention. Such comments are useful when the code is correct but may not be easily understood by anyone new to the code, or even to the same programmer in a few week’s time. As you can see from the example, our database class is tied to using SQL Server and would require a hardcoded change to accept any other type of database.

I will attempt to address these questions in this “In a Nutshell” series blog post. By keeping your code clean, you’ll make life easier for yourself and everyone involved in the project. Download our e-book to learn how to create clean and scalable C# game code.

how to write cleaner code in C#

Most developers know that a clean and well-organized code is the key to a good project. The following table shows the naming convention you should use while writing C# code. It’s pretty much a standardized way of writing code. In the past, people would add many comments to their code because they thought it was suitable for the project. And they saw everyone else was adding comments everywhere.

Good code versus bad code

Clean code is C# code that is easy to read and understand, both for the original author and any future developers who may need to work on the codebase. It is a code that follows best coding practices and is organized in a logical way. Writing Clean and Scalable Code is not easy as well.

Commenting C# Code

You have the right level of abstraction when you expose to the higher level only that which needs exposure, and you do not get lost in the implementation. This excerpt from the Kusto Query Language project is a good how to write cleaner code in C# example of an API documentation comment. This can be a major cause of stress when you are expected to work on it with set deadlines. Code that is tightly coupled is hard to test and hard to extend or modify.

Using consistent naming conventions across a codebase can make it easier for developers to understand and navigate the code, and can help prevent naming conflicts and confusion. There are various naming conventions you should use when following best coding practices in C#. Despite the fact that C# is a very rich on features language, it’s very common to see poorly designed and implemented types in a real world.

#25 Unit testing

This can make it difficult to establish the scope of a variable. Don’t use underscores between words in a name either, such asBad_Programmer. This can cause visual stress for developers and can make the code hard to read.

Getting the abstraction right is critical, that’s why you should follow the SOLID principles laid out in the Classes section. Bad abstractions can be worse than duplicate code, so be careful! Having said this, if you can make a good abstraction, do it!

Don’t repeat yourself, otherwise you’ll find yourself updating multiple places anytime you want to change one thing. A good example to look at that demonstrates this principle is for classes that require large settings objects. Not requiring clients to setup huge amounts of options is beneficial, because most of the time they won’t need all of the settings.

Following the YAGNI code style can reduce costs by preventing features from being built that may not be needed at all. One of the most common mistakes I’ve seen from new developers is not having an exception handler for statements that can go wrong. For example, if you have a line of code that opens the file and reads it, it’s a great idea to add a try-catch block around that code. If the file does not exist, this can throw an error. Unused code is a massive problem in most software projects.

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