Object Oriented Design

John Resig's Secrets of the JavaScript Ninja PDF

By John Resig

ISBN-10: 1617292850

ISBN-13: 9781617292859


Secrets of the Javascript Ninja takes you on a trip in the direction of getting to know smooth JavaScript improvement in 3 levels: layout, development, and upkeep. Written for JavaScript builders with intermediate-level abilities, this booklet provides you with the information you must create a cross-browser JavaScript library from the floor up.

About this Book

You cannot regularly assault software program head-on. occasionally you come back at it sideways or sneak up from at the back of. you must grasp an arsenal of instruments and understand each stealthy trick. you need to be a ninja.

Secrets of the JavaScript Ninja leads you down the pathway to JavaScript enlightenment. This special booklet starts off with key strategies, just like the relationships among features, items, and closures, taught from the master's standpoint. you will develop from apprentice to ninja as you take up clean insights at the ideas you employ on a daily basis and notice beneficial properties and features you by no means knew approximately. if you succeed in the ultimate chapters, you will be able to code outstanding JavaScript purposes and even perhaps write your individual libraries and frameworks.

You do not need to be a ninja to learn this book—just be prepared to develop into one. Are you ready?

buy of the print e-book comes with a proposal of a unfastened PDF, ePub, and Kindle publication from Manning. additionally on hand is all code from the booklet.

What's Inside

  • Functions, gadgets, closures, standard expressions, and more
  • Seeing purposes and libraries from the precise perspective
  • Dealing with the complexities of cross-browser development
  • Modern JavaScript design

About the Authors

John Resig is an stated JavaScript authority and the writer of the jQuery library. Bear Bibeault is an internet developer and coauthor of Ajax in perform, Prototype and Scriptaculous in Action, and jQuery in Action from Manning.

Table of Contents

    PART 1 getting ready FOR TRAINING
  1. Enter the ninja
  2. Arming with checking out and debugging
  4. Functions are fundamental
  5. Wielding functions
  6. Closing in on closures
  7. Object-orientation with prototypes
  8. Wrangling average expressions
  9. Taming threads and timers
  11. Ninja alchemy: runtime code evaluation
  12. With statements
  13. Developing cross-browser strategies
  14. Cutting via attributes, homes, and CSS
  15. PART four grasp TRAINING
  16. Surviving events
  17. Manipulating the DOM
  18. CSS selector engines

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Additional info for Secrets of the JavaScript Ninja

Example text

Consider this, for example: assert(a === 1, "Disaster! "); 10 CHAPTER 1 JavaScript is everywhere If the value of variable a isn’t equal to 1, the assertion fails, and the somewhat overly dramatic message is displayed. NOTE The assert function isn’t a standard feature of the language, so we’ll implement it ourselves in appendix B. 3 Performance analysis Another important practice is performance analysis. The JavaScript engines have made astounding strides in the performance of JavaScript, but that’s no excuse for writing sloppy and inefficient code.

In what situations might callback functions be used synchronously? Asynchronously? What’s the difference between an arrow function and a function expression? Why might you need to use default parameter values in a function? 1 What’s with the functional difference? One of the reasons that functions and functional concepts are so important in JavaScript is that functions are primary modular units of execution. Except for the global JavaScript code executed in the page-building phase, all of the script code that we’ll write for our pages will be within a function.

19 The page-building phase Invalid HTML


head body head body p Error: Content elements such as paragraphs (p) should be descendents of the body element, not of the head element! 5 html html p The DOM as specified by the HTML code The produced DOM, fixed by the browser An example of invalid HTML that is fixed by the browser finds with this blueprint in order to create a valid DOM. 5. 5 gives a simple example of erroneous HTML code in which a paragraph element is placed in the head element.

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Secrets of the JavaScript Ninja by John Resig

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