Characteristics of class inheritance

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To create a child class, use the "extends" keyword in its declaration, which operates on prototypes. To call functions of the parent object, use "super".

In detail about each concept
Object
This term refers to a type of information that is realized in the form of a complex of properties that have a name and a value. For example, a car is an object, a single piece assembled on a factory conveyor. The latter is also positioned as an object.

Thanks to this, the system understands that it is receiving an indication directly to the element itself and uses its access to properties. Moreover, properties in JavaScript can be assigned both during and after the template is created. A request to missing methods is unacceptable in this particular case.

Varieties
All elements in a programming language without exception belong to the object variety. At the same time, they have different structures, that is, composition of properties. To distinguish types, class japan consumer email list designations are used. It is transmitted by means of a function called a constructor. Its name is the name of the class and begins with a lowercase letter. They are formed by means of new <FunctionName>():

When opening the console, we determine the type of the object, while requesting the class element itself. You can check it using the instanceof operator.

Class 0bject
In addition to the usual method, which we looked at just above, there is another one, which uses 0bject. Moreover, Object and 0bject are different functions. The latter is intended as a base class in JavaScript. We enter the 0bject object and get: