WordCamp Nashville 2016
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A big hurdle for WordPress Developers when jumping into Javascript development is the paradigm switch from PHP’s Class based classical inheritance to Javascript’s more Functional prototypal inheritance. In this talk we will be taking an in-depth look at how objects work in Javascript. We will also be look at different ways to handle inheritance in Javascript. In addition to reviewing what JS Prototypes are, we will also spend some time looking at object creation patterns in JS. How they differ from PHP, and in some ways how they are similar. We will even cover cool things that Javascript lets us do like borrowing methods from other objects. And much much more.
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WordCamp Nashville 2016
- 1. bobby | @mrbobbybryant #wcnash Javascript Prototypal Inheritance. How its different, and why you need to know it Bobby Bryant
- 2. Bobby Bryant | @mrbobbybryant #wcnash About Me • Web Engineer at 10up • Father of 3 • JavaScript Junkie
- 3. Bobby Bryant | @mrbobbybryant #wcnash Why Cover such a weird topic?
- 4. Bobby Bryant | @mrbobbybryant #wcnash –Kyle Simpson @getify “Where it takes a pretty in-depth knowledge of a language like C or C++ to write a full-scale program, full-scale production JavaScript can, and often does, barely scratch the surface of what the language can do.” https://github.com/getify/You-Dont-Know-JS
- 5. Bobby Bryant | @mrbobbybryant #wcnash Classical vs Prototypal Inheritance
- 6. Bobby Bryant | @mrbobbybryant #wcnash Classical Inheritance • Allows you to create new objects using a class as a blueprint. • A blueprint as a few characteristics that make it distinct. • It implies that if you follow the instruction you will successfully create your object. • Class Based languages are built around the concept of: • Building base classes. • Extending the base classes to build a hierarchy of inheritance.
- 7. Bobby Bryant | @mrbobbybryant #wcnash Classical Inheritance • Class Based languages are built around the concept of: • Building Base Classes. • Extending the base classes to build a hierarchy of inheritance.
- 8. Bobby Bryant | @mrbobbybryant #wcnash Prototypal Inheritance • A prototype is one step farther than a blueprint. • It implies that you have a working version of something. • It not a contract that says if you follow these steps you will have a working object. • It implies that, “here is a working object, use it as is or make copies if you want.”
- 9. Bobby Bryant | @mrbobbybryant #wcnash How Does JavaScript use these prototypes?
- 10. Bobby Bryant | @mrbobbybryant #wcnash
- 11. Bobby Bryant | @mrbobbybryant #wcnash Lots of them
- 12. Bobby Bryant | @mrbobbybryant #wcnash Understanding the Prototype
- 13. Bobby Bryant | @mrbobbybryant #wcnash Prototypal Inheritance
- 14. Bobby Bryant | @mrbobbybryant #wcnash Prototypal Inheritance
- 15. Bobby Bryant | @mrbobbybryant #wcnash Static Methods
- 16. Bobby Bryant | @mrbobbybryant #wcnash Real World Example
- 17. Bobby Bryant | @mrbobbybryant #wcnash Constructor
- 18. Bobby Bryant | @mrbobbybryant #wcnash Extending a Prototype
- 19. Bobby Bryant | @mrbobbybryant #wcnash Object Literal
- 20. Bobby Bryant | @mrbobbybryant #wcnash Delegation
- 21. Bobby Bryant | @mrbobbybryant #wcnash Delegation
- 22. Bobby Bryant | @mrbobbybryant #wcnash Object Creation Patterns
- 23. Bobby Bryant | @mrbobbybryant #wcnash Object.create
- 24. Bobby Bryant | @mrbobbybryant #wcnash Factory Function
- 25. Bobby Bryant | @mrbobbybryant #wcnash Factory Fn #2
- 26. Bobby Bryant | @mrbobbybryant #wcnash Composition vs Inheritance
- 27. Bobby Bryant | @mrbobbybryant #wcnash Currently in the larger JS world, there is actually a completely different paradigm growing. Functional Programming. And at its core functional programming is about Composition over Inheritance.
- 28. Bobby Bryant | @mrbobbybryant #wcnash Object.assign
- 29. Bobby Bryant | @mrbobbybryant #wcnash Object.assign
- 30. Bobby Bryant | @mrbobbybryant #wcnash Composition
- 31. Bobby Bryant | @mrbobbybryant #wcnash ES6 Classes
- 32. Bobby Bryant | @mrbobbybryant #wcnash Is class syntax in ECMAScript 6 just a syntactic sugar for classical prototypes? https://www.quora.com/Is-class-syntax-in-ECMAScript-6-just-a- syntactic-sugar-for-classical-prototypes
- 33. Bobby Bryant | @mrbobbybryant #wcnash Delegation again
- 34. bobby | @mrbobbybryant #wcnash Thank You! I have a Javascript Problem.