JS patterns
?
0 likes?464 views
JavaScript Patterns and Techniques discusses JavaScript fundamentals including: - JavaScript is an implementation of EcmaScript with support varying by browser version. It is prototype-based, dynamically typed, supports first class functions, and can be used in object-oriented, functional, or imperative styles. - Objects can be created using literals, anonymous constructors, factory methods, or wrappers. Properties can be set using dot notation, square brackets, or Object helper methods. - Constructors, or classes, are defined using functions but must be invoked with new. Constructors set the prototype and allow for polymorphism. - Variables scope differs in JavaScript. Private class members can be achieved through closures or
JS patterns
- 2. What exactly JS is ? ¡ñ Ecma Script implementation Currently most browsers fully supports EcmaScript-262 5.1 http://kangax.github.io/compat- table/es5/ Except IE8 - supports EcmaSript 3rd edition (FYI: there was not ES 4) Previous releases http://www.ecma-international.org/publications/standards/Ecma-262.htm ¡ñ Prototype Based ¡ñ Dynamically typed ¡ñ First Class Functions ¡ñ Object Oriented, Functional, Imperative
- 3. Creating an object ¡ñ Object Literals ¡ñ Anonymous Constructor ¡ñ Factory method ¡ñ Wrappers creating_object1.js
- 4. Setting properties to object ¡ñ Dot Notation ¡ñ Square brackets notation ¡ñ Helper methods from Object setting_properties1.js
- 5. Writing constructors aka defining Classes ¡ñ Function vs Constructor ¡ñ Function¡¯s prototype ¡ñ __proto__ ¡ñ polimorphism constructor.js
- 6. Privacy in Java Script ¡ñ Variables scope in JS ¡ñ Private Class Members privacy.js, privacy2.js
- 7. Modules in JavaScript Module is set of methods and properties, with or without state. ¡ñ Simple module modules.js ¡ñ Private state in modules modules2.js ¡ñ Revealing Module Pattenr
- 8. to be continued Thank you