JavaScript for PHP Developers
A Concise Guide to Mastering JavaScript
Published on 24. April 2013
160 pages
978-1-4493-7031-2 (ISBN)
Description
If you want to significantly expand your web development skills beyond PHP, this practical, hands-on book teaches you ECMAScriptthe core JavaScript languagefrom the ground up. Youll discover some similarities between JavaScript and PHP, such as conditions and loops, but the primary focus is on JavaScripts unique object creation, classes, prototypes, and inheritance.JavaScript knowledge is essential for working with todays Web, whether youre building applications for the client, the server, or for mobile useand your PHP experience gives you a head start. This book will help you become fluent with JavaScript quickly, and then serve as a handy reference once you start coding.Explore JavaScript syntax, including variables, arrays, loops, and conditionsLearn how functions are important in JavaScriptand why theyre actually objectsDelve into JavaScripts object-oriented features, including prototypes, code reuse, and inheritanceExamine the built-in API and explore its global functions, properties, and objectsLearn about updates in ECMAScript5, the latest version of the standardUse common design patterns to organize your code in large applications
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06/2013
1st Edition
O'Reilly
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Content
- Intro
- Copyright
- Table of Contents
- Acknowledgments
- Preface
- Conventions Used in This Book
- Using Code Examples
- Safari® Books Online
- How to Contact Us
- Chapter 1. Introduction
- Scope of This Book
- The Language
- Learning Environment
- Browsers
- JavaScriptCore
- Node.js and Rhino
- Longer Examples
- Let's Get Started
- Chapter 2. JavaScript Syntax
- Variables
- What Does $ Do in JavaScript?
- Values
- typeof Introspection
- null and undefined
- Arrays
- Associative Arrays
- Conditions
- Ternary Operator
- Strict Comparison
- switch
- try-catch
- while and for Loops
- for-in Loops
- Miscellaneous Operators
- in
- String Concatenation
- Type Casting
- void
- Comma Operator
- Chapter 3. Functions
- Default Parameters
- Any Number of Arguments
- arguments.length Trick
- Return Values
- Functions Are Objects
- A Different Syntax
- Scope
- Hoisting
- Hoisting Functions
- Closures
- Closures in PHP
- Scope Chain
- The Scope Chain in the WebKit Console
- Retaining the Scope
- Retaining References, Not Values
- Closures in a Loop
- Exercise: onclick Loop
- Immediate Functions
- Initialization
- Privacy
- Passing and Returning Functions
- Callbacks Are Not Strings
- Chapter 4. Object-Oriented Programming
- Constructors and Classes
- Returning Objects
- Enforcing Constructors
- Prototypes
- Object Literals
- Accessing Properties
- Confusing Dots
- Methods in Object Literals
- Fancy Arrays
- Own Properties
- __proto__
- this or prototype
- Inheritance
- Inheritance via the Prototype
- Inheritance via Copying Properties
- Beget Object
- "Classical" extend()
- Borrowing Methods
- Conclusion
- Chapter 5. The Built-In API
- The Global Object
- Global Properties
- Global Functions
- Numbers
- Encoding URLs
- Built-In Constructors
- Object
- Array
- RegExp
- Function
- String
- Number
- Boolean
- Math
- Error
- Date
- Constructors Review
- Chapter 6. ECMAScript 5
- Strict Mode
- Property Attributes
- New Object APIs
- Object.create()
- Object.getOwnPropertyDescriptor()
- Object.defineProperty() and Object.defineProperties()
- Restricting Object Mutations
- Looping Alternatives
- Object.getPrototypeOf()
- Array Additions
- Array.isArray()
- indexOf() and lastIndexOf()
- Walking the Array Elements
- Filtering
- Testing the Array Content
- Map/Reduce
- String Trimming
- New in Date
- Function.prototype.bind()
- JSON
- Shims
- Chapter 7. JavaScript Patterns
- Private Properties
- Private Methods
- Exposing Private Objects
- Returning Private Arrays
- Deep Copy via JSON
- Revealing Pattern
- Constants
- Namespaces
- Modules
- CommonJS Modules
- Defining a CommonJS Module
- Using a CommonJS Module
- Using an Agnostic Module
- AMD
- Design Patterns
- Singleton
- Factory
- Decorator
- Documentation and Testing
- Manual
- Documenting Your Code
- Unit Testing
- JSLint
- Linting This Book
- Index
- About the Author
