Chapter 23
Design Patterns
Design patterns are object oriented solutions that you can implement to solve common programming problems that may occur during the development process. Design patterns are not the same as algorithms, they are a coding concept that you can use to resolve specific kinds of issues.
There are a total of 23 design patterns, these are not unique to any one language. These are fundamental concepts that can be applied across a wide variety of programming languages. Today we will learn about each design pattern and how to implement them using javascript. Design patterns can be classified under one of three categories