Domain Modeling

Domain modeling is the process of creating a conceptual model in code for a specific problem. A model describes the various entities, their attributes and behaviors, as well as the constraints that govern the problem domain. An entity that stores data in properties and encapsulates behaviors in methods is commonly referred to as an object-oriented model.

A domain model that’s articulated well can verify and validate the understanding of a specific problem among various stakeholders. As a communication tool, it defines a vocabulary that can be used within and between both technical and business teams.

Define a constructor and initialize properties

|propert | Data| Type| |——|——|—— | epicRating| 1 to 10| Number| | Number| true or false| Boolean|

to create tables

XX What information suits tables

What’s a Table?

A table represents information in a grid format. Examples of tables include financial reports, TV schedules, and sports results.

CREATING OBJECTS USING CONSTRUCTOR SYNTAX

On the right, an empty object called hote 1 is created using the constructor function. Once it has been created, three properties and a method are then assigned to the object. ( If the object already had any of these properties, this would overwrite the values in those properties.)

RECAP: WAYS TO CREATE OBJECTS

CREATE THE OBJECT, THEN ADD PROPERTIES & METHODS In both of these examples, the object is created on the first line of the code sample. The properties and methods are then added to it afterwards.Once you have created an object, the syntax for adding or removing any properties and methods from that object is the same.

RECAP: STORING DATA

In JavaScript, data is represented using name/value pairs. To organize your data, you can use an array or object to group a set of related values. In arrays and objects the name is also known as a key.

USING THE DOCUMENT OBJECT JavaScript

GLOBAL OBJECTS: MATH OBJECT

The Math object has properties and methods for mathematical constants and functions.