Notes, practice and examples on the Ruby programming language 🎉
- To run ruby in the command line, use "interactive ruby":
irb - To run a ruby file, run
ruby <filename>.rb - Ruby Style Guide & Best Practices
- Practice Ruby
- Object-oriented programming (OOP) is a programming paradigm that uses objects and their interactions to design and program applications.
- Allows the program to block off areas of code that perform certain tasks independently of other areas in the application.
- Encapsulation - concept of blocking off areas of code and not making it available to the rest of the program
- Abstraction - is simplifying a complex process of a program, an enterprise software solution for example by modeling classes appropriate for it
- Inheritance - is used where a class inherits the behavior of another class, referred to as the superclass
- Polymorphism - is when a class inherits the behaviors of another class, but has the ability to not inherit everything and change some of it’s inherited behaviors. For example to write a method that does something differently from the inherited method
- Classes - It is a blueprint that describes the state and behavior that the objects of the class all share. A class can be used to create many objects. Objects created at runtime from a class are called instances of that particular class.
- Installing gems ("packages"):
gem install bcrypt