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‫Welcome back.

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‫And this video I would like to cover coding standards.

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‫Basically, coding standards are a set of guidelines, best practices and programming styles that developers

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‫followed when writing source code for a project.

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‫So all big software companies follow these standards and companies have their own standards as well.

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‫So these are just some examples of coding standards.

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‫Of course, once you work in a company, they will tell you to write your code in a certain way because

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‫that's how they do it.

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‫So let's have a look at the parts of the coding standard.

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‫You should always give your variables a reasonable name.

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‫So while declaring a variable, the developer has to give the variable a proper name.

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‫The name of the variable should be based on its use.

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‫Think about what do I use this variable for?

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‫And then give it a name that describes what this variable is really used for.

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‫For example, if you want to store the h of the user, then a good name for that variable would be.

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‫Age or user age.

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‫You should also give your functions a proper name as well.

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‫A function should be given a name based on the functionality it does in the code or program.

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‫So functions usually do actions, right?

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‫So for example, if you want to have a function that will check for internet connectivity, then you

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‫call it check internet connection.

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‫Then comments.

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‫It's a good practice to always leave comments in your code and in big tech companies it's a must.

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‫Functions should have comments which state the use and functionality of that function.

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‫It helps other developers working on the same project to understand what the use of that function is.

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‫And it's not just for other developers, but it's also for yourself.

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‫When you come back to the code a couple of years later or even a couple of months, you will find it

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‫really tough to understand your own code if you don't have proper comments and you will have to figure

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‫out everything from scratch again, which will take way too much time.

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‫All right.

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‫Now let's explore the different types of comments you can use in your projects.

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‫So there are single line comments, and this is a single line comment that you can see here.

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‫It's useful to describe what variables are or what an if statement is for.

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‫Then there are multi line comments used to comment more than one line.

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‫It starts with a slash star and ends with a star slash.

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‫So this can go over multiple lines.

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‫You can add a lot of comments in there and all of that will not be interpreted by the compiler.

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‫So it's just there for the developer to read.

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‫And then you can use the XML documentation comments used to create documentation of functions or a class.

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‫It's a typical type of commenting.

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‫In C-sharp you start with three slashes, then you have the tag summary and the summary is within brackets,

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‫and then you basically just fret whatever this class or function does.

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‫These are pretty useful when you share your code with others because Visual Studio will recognize them

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‫and display the summary when you call the method.

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‫As you can see, once we hover over the methods, we will read the summary we wrote.

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‫So here the cool method, for example, has a summary that says This is a cool method, and once you

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‫hover over the cool method with your mouse, it will state that summary at the bottom of it, saying

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‫what the method does.

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‫All right, so that's it for the standard practices.

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‫Of course, there are more practices that you will come across once you are actually working for a big

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‫firm or in a company in general where you will learn how they decide to, for example, name their variables

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‫and so forth.

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‫Okay.

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‫So see you in the next video.