Chapter 7. JavaScript Design Patterns

In every mid- to large-sized projects, good architecture and design always plays an important role in handling complex scenarios and increasing the maintainability of the product. Design patterns are best practices developed and used by professional developers to solve a particular problem. If a design pattern has been used in the application for specific scenarios, it evades many of the issues one could face during development or when running the application in production. Design patterns solve the problems by providing the guidelines which are industry best practices to handle problems or to achieve or implement any requirement. A singleton pattern, for example, is used to create only one instance that is shared among all, whereas a prototype is used to extend the existing functionality of an object by adding more properties and methods and so on. Design patterns are classified into three categories, namely creational, structural, and behavioral...