Programming 101 - Basic Concepts of Programming

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HOW TO WRITE CLEAN CODE⠀ ⠀ "Don’t call the world dirty because you forgot to clean your glasses!"⠀ ⠀ Write for humans⠀ The code we write will be interpreted by machines. However, it will be read and improved by humans. So, write beautiful and impressive poetry!⠀ ⠀ Use meaningful names ⠀ Meaningful names are descriptive enough that other people will be able to understand the purpose of the variable, function, or object.⠀ ⠀ One task at a function ⠀ Let every function (or method) perform just one task. This will make your functions smaller, and increase your focus on implementing that specific feature and the ability to debug that function.⠀ ⠀ Use comments when needed⠀ No matter how hard we try to write readable code, sometimes you should insert some comments into your code to explain the why and make your code more clarified.⠀ ⠀ Consistency is key ⠀ Pick a set of coding practices and then stick to those practices in all of your projects. It will be much easier to return to your...

WHY ARRAYS START AT (0) IN SIMPLE TERMS ⠀ ⠀ "When you make yourself into zero, your power becomes invincible!" ⠀ WTF MOMENT⠀ “Arrays start at 0”⠀ This is one of the first unusual things that beginners see in their programming journey. And most of us just memorize that fact and then laugh at memes about it. But seriously, why do array indices start at 0?⠀ ⠀ DISCLAIMER ⠀ Not all languages have zero-based arrays. Array indices in Fortran, COBOL, MATLAB, R, Julia, and Lua start at 1.⠀ ⠀ BOTTOM LINE⠀ Last thing first, the choice of zero-based or one-based (or any number) indexing is arbitrary. It comes from language design itself. There is no rule. Each option has its pros and cons. But, let’s see why zero-based indexing is more common!⠀ ⠀ HERITAGE ⠀ In C, an array points to its location in the memory, and the index is simply an offset that specifies the distance from the start. The first element is at the start of the array so there is no distance. Therefore the offset is 0. Usin...

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