Please take a look at the JavaScript documentation and the JavaScript code that I included to make this more clear. I included this because I really wish someone had taken the time to explain what the code does and what its purpose is. I’m not quite sure if this is worth the time it takes. I’m sure that if I had made it as clear as I did, it would have been more effective. The code is really just an example on how to use the class.
I really wanted to put this in here because it is a pretty clear example of why you should use classes. But it is one of those things that is a little too long for what would be two short paragraphs. This is just an example of one of the various ways that classes can be used.
We’ve all heard of the value of encapsulation and sharing, but what is encapsulation? It is the act of making a class completely independent of its surrounding environment. It’s a technique used to make classes (or object) that are isolated, and thus easier to change. It’s a technique used in conjunction with the class keyword to make certain instances of classes share a common instance of an object.
For example, lets say weve got a class called User. Weve got the class User with the constructor User(name, age) Weve also got the class User, which has a number of properties, such as name, age, etc. To make sure we understand whats happening here lets first define User.
This is where your object would go in and create an instance of itself. That class is still called User, and we just created two instances for it. It’s easy to change these instances, and then change the class. For example, lets say weve got another class called User2. User2 has properties, such as username, age, etc. There is also a class called User3, which extends User2.
So what happens here is that User2 is really just a prototype for User3. By creating three instances of User2, we can then make User3 an instance of User3, just like we did with User2. All we need to do is change the properties for User3, and we can create three instances of User3.
The reason for using a class is to be able to quickly change the logic of a class and the class itself, rather than having to change everything. The reason for using a class is the class itself, and the class itself should not be dependent upon others.
By making User3 a subclass of User2, we can create a lot of different types of user using the same code. And because the classes themselves are independent, we can quickly change the logic of a class and the class itself, rather than having to change everything. The reason for using a class is the class itself, and the class itself should not be dependent upon others.
We can create a class that changes the way an object is created, but can’t change the object itself. So, for example, if we’d written a class that changed a user’s name, we could have also written a class that changed the user’s name. But, we couldn’t change the user’s name itself.
The most obvious problem with using a class (or an object) is that it breaks encapsulation. You are able to change the logic of your class, but the class itself cannot, for example change the color of the box it is in. It can, however, change the color of it’s parent box. I guess it would be a little more complicated to think of a function that changed that box’s color.
