JS patterns
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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 ? ● 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 ● Prototype Based ● Dynamically typed ● First Class Functions ● Object Oriented, Functional, Imperative
- 3. Creating an object ● Object Literals ● Anonymous Constructor ● Factory method ● Wrappers creating_object1.js
- 4. Setting properties to object ● Dot Notation ● Square brackets notation ● Helper methods from Object setting_properties1.js
- 5. Writing constructors aka defining Classes ● Function vs Constructor ● Function’s prototype ● __proto__ ● polimorphism constructor.js
- 6. Privacy in Java Script ● Variables scope in JS ● Private Class Members privacy.js, privacy2.js
- 7. Modules in JavaScript Module is set of methods and properties, with or without state. ● Simple module modules.js ● Private state in modules modules2.js ● Revealing Module Pattenr
- 8. to be continued Thank you