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Code the Model Classes

Explore how to code model classes in plain JavaScript by defining enumeration types and implementing getters, setters, and validation methods. Understand how to manage optional attributes and enforce constraints while updating properties in a front-end app.

The JS class model can be directly coded to get the code of the model classes of our JS front-end application.

Summary

  1. Code the enumeration type BookCategoryEL to be used as the range of the category attribute with the help of the meta-class Enumeration.
  2. Code the model class Book in the form of a JS class definition with get and set methods as well as static check functions.

These steps are discussed in more detail in the following ...