RFS: Constants, Snake Case and Camel Case - 010

In this episode we talk about constants, and why the distinction between snake case and camel case is important in ruby.

Constants

In ruby constants are anything that start with capital letter. So inside of a class we can define a constant or even the naming of the class itself is a constant and starts with capital letters.

class Product  TYPES = ['game', 'food']end

In this case we have a constant TYPES that holds the array with 2 values.

Snake Case / Camel Case

Having a clear distinction between snake case and camel case is important in ruby, this is because if we define something starting with a capital letter they will be regarded as 'constants', so if we're assigning something to a variable it's important to use snake case.

variables_are_snake_case = "yay"def method_names_are_also_snake_case  puts "important distinction"endConstantsAreCamelCase = "awesome"class Animal  # defining classes are also done with Constantsend

That's all for this episode!