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Polymorphism (of subtypes) – the main distinguishing feature of modern OOP. It allows to significantly reduce the number of conditional constructs and makes the code extensible.
At the same time, polymorphism is a large and deep topic that requires serious preparation. This is where design patterns and SOLID principles come in. All this is an integral part of JavaScript development for professional developers.
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- Understand the difference between different types of polymorphism and the tasks they solve
- Recognize and apply design patterns (Strategy, Factory, State, Decorator, Null Object and others)
- Use different types of dispatch to reduce and simplify code
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1 | About Learn about the course, its structure, objectives and goals. |
2 | Parametric polymorphism Explore generalized programming. |
3 | Dispatch data by key Learn to replace conditional constructions with a lookup table |
4 | Dispatch functions by key Learn to dispatch using functions |
5 | Dispatch by file Learn dispatching by file structure |
6 | Polymorphism (duck typing) Learn duck typing |
7 | Null Object Pattern Explore a practical example of using polymorphism in real life. |
8 | Code that kills polymorphism Learn about common mistakes that cause polymorphism of subtypes to be lost |
9 | Dependency inversion Explore the Dependency Inversion Principle and learn how to follow it using Dependency Injection |
10 | Strategy (Pattern) Learn to see where you need to use polymorphism of subtypes |
11 | Factory (Pattern) Explore a common way to create objects |
12 | Design Patterns (Patterns) Explore the concept of "design pattern" |
13 | Object composition Learn to write object-oriented code built on the interaction of objects |
14 | Pattern State Consider several examples of systems and identify a common pattern.. |
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