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Object Oriented Concepts in Real Projects
The document discusses the basic principles of object-oriented programming (OOP) with a focus on concepts such as abstraction, encapsulation, polymorphism, and the single responsibility principle, specifically in JavaScript. It highlights the importance of these principles for reducing complexity and enhancing efficiency in software development. Additionally, it mentions real-world applications and examples, as well as resources for further reading on OOP and design patterns.
Object Oriented Concepts in Real Projects
- 1. Kalinichenko Yevhen Basicprinciples of Object Oriented Programming Object Oriented Concepts
- 2. Statistic 50 Interviews 20 Interviews 47 Interviews 70 Interviews 60 Interviews 247 Interviews 80% don’t knowwhat OOP is
- 3. Common OOP inJavascriptexamples Prototypal Inheritance
- 4. We work inteams
- 5. A set ofprinciples Polymorphism
- 6. Abstraction Polymorphism Singleresponsibility Encapsulation Open/Closed Principles for today JavaScript
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- 8. Abstraction The conceptof describing something in simpler terms. Abstracting away the details, in order to focus on what is important. Abstraction helps us to reduce complexity and increase efficiency.
- 9. Real Case Task Visual Features Team Core Features Team Interface Interface
- 10. Abstract Classes CoreFeatures Team DataStore Real Case
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- 16. Responsibilities and Roles Widget Container View Data Data Visualization Configuration Architecture solution Customer BE Dev FE Dev FE Dev Tech Lead FE Dev
- 17. Single Responsibility Principle A class should have only one reason to change. Class should have a cohesive set of behaviors, together comprising a single responsibility.
- 18. Inverse dependencies DataVisualizationComponent Data Widget Container Configuration
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- 20. Different behavior ofmethod based on arguments length/arguments type. Method overloading
- 21. Duck typing Wework with objects of different types identically if these objects adhere the same contract. “When I see a bird that walks like a duck and swims like a duck and quacks like a duck, I call that bird a duck.” (c)
- 22. Polymorphism Core FeaturesTeam DataStore
- 23. Compose components Container Configuration Data Visualization
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- 25. Encapsulation Encapsulation hidesthe implementation details. Expose public interface.
- 26. Breaking of encapsulation We can’t change inner implementation of our class without breaking of the client’s code. Maintenance hell.
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- 28. Everything is oknow. Always use clear defined interface
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- 30. Open/Closed principle Widget Closed for modification New data visual Open for extension
- 31. Open/Closed examples JQueryplugins. Strategypattern.
- 32. Conclusion “Continuous refactoring”. Principles in mind.
- 33. Related materials SOLIDJavaScript -http://freshbrewedcode.com/derekgreer/2011/12/08/solid- javascript-single-responsibility-principle/ Pro JavaScript design Patterns -http://www.amazon.com/Pro-JavaScript-Design- Patterns-Object-Oriented/dp/159059908X Head First Object-Oriented Analysis and Design - http://shop.oreilly.com/product/9780596008673.do Head First Design Patterns -http://shop.oreilly.com/product/9780596007126.do Code Complete -http://www.amazon.com/Code-Complete-Practical- Handbook-Construction/dp/0735619670
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