JavaScript Inheritance

Topics

Inheritance through Prototype
Function constructor and Prototype

Inheritance through Prototype

Prototype-based Languages
Two different ways for supporting inheritance in programming languages
- Scheme #1: Through traditional class hierarchy (Java, C, C++, ...)
- Scheme #2: Through prototype (JavaScript)
JavaScript is a prototype-based language
In a prototype-based language, there is no concept of a "class"
- Inheritance is provided through prototype, however
In prototype-based language, every object has “prototype” property (the actual name of the “prototype” property is __proto__) that points to “prototype” object
- Since the prototype object itself is a JavaScript object, it has its own “prototype” property, which in turn forms “prototype chain”, until it reaches “Object” object, which has null as its prototype

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Professor Sang Shin provides an awesome training experience, complete with multimedia support which can be referenced later on for further reinforcement

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I have already recommended JPassion to friends of mine who are interested in getting started with programming -- the material is very accessible and our instructor is very responsive.

Jarett DeAngelis

I'm glad I attended this javascript/jQuery codecamp by JPassion. The broadcast was easy to setup and its quality excellent. Good alternance of theory/exercices, and wonderful pedagogy and support by M. Sang Shin. I'll probably look forward for others codecamps.

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This course helped me learn JavaScript and JQuery from the ground up. I will use this new knowledge on my next project. Looking forward to the next lesson on Spring MVC.

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I highly recommend taking Sang's code camps. I needed a refresher on Javascript and an introduction to jQuery and this code camp did not disappoint. Needless to say, I got more out of it than just a quick introduction, the code camp covered advance topics enough to point you in the right direction.Looking forward to more code camps of this nature.

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I was delighted to be able to attend parts of the JavaScript and jQuery code camp. Although I have a busy work schedule, I was able to follow along with Sang's presentations to learn much more about these two topics than I knew beforehand. The labs were very useful in providing hands-on coding examples with which we were able to try out numerous programming constructs and techniques. Although I didn't participate enough to learn some of the more advanced topics, such as Ajax wrappers and JavaScript Inheritance, I have come away with a much better understanding of the tools and coding practices to improve my web application programming. Thanks, Sang, for offering these useful and practical lesson and for answering our many questions patiently and clearly.

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I learned so much from your instruction during the four day Javascript/JQuery (+) workshop. Your method and presentation were excellent. The amount of material was a bit like drinking from a fire hose, but a good understanding was achieved. I will revisit the PDFs, Labs and recordings to hone my understanding further.

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JavaScript Inheritance

Topics

Inheritance through Prototype

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