Pro JavaScript Design Patterns 2008 phần 3 docx

... 11/15/07 10 :34 AM Page 52 // Later in your page, another programmer adds var resetProduct = $('reset-product-button'); var findProduct = $('find-product-button'); // The findProduct ... new Author('Dustin Diaz', [&apos ;JavaScript Design Patterns& apos;]); author[1] = new Author('Ross Harmes', [&apos ;JavaScript Design Patterns& apos;]); autho...

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... . . . . . . . . . . . . . 2 63 ■CONTENTS xiii 908Xch00FM.qxd 11/16/07 1:05 PM Page xiii f7670b088a34e6aa65a5685727db1ff4 Pro JavaScript ™ Design Patterns Copyright © 2008 by Ross Harmes and Dustin ... function() { return foo * bar; }; })(); CHAPTER 1 ■ EXPRESSIVE JAVASCRIPT 7 908Xch01.qxd 11/15/07 10 :31 AM Page 7 Pro JavaScript ™ Design Patterns Ross Harmes and Dustin...

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... }, CHAPTER 3 ■ ENCAPSULATION AND INFORMATION HIDING 31 908Xch03a.qxd 11/15/07 10 :33 AM Page 31 Interfaces The interface is one of the most useful tools in the object-oriented JavaScript programmer’s toolbox. ... newIsbn; }; this.getTitle = function() { return title; }; CHAPTER 3 ■ ENCAPSULATION AND INFORMATION HIDING 33 908Xch03a.qxd 11/15/07 10 :33 AM Page 33 getAuthor: funct...

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... _$(arguments); }; })(); CHAPTER 6 ■ CHAINING 85 7257ch06a.qxd 11/15/07 10 :37 AM Page 85 Design Patterns PART 2 ■ ■ ■ 7257ch07.qxd 11/15/07 10 :38 AM Page 91 displayResult: function(response) { // Output the ... possible. It is one of the most useful patterns in JavaScript and has its place in almost every project, no matter how large or small. In quick and simple projects, a singleto...

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... PATTERN 1 03 7257ch07.qxd 11/15/07 10 :38 AM Page 1 03 The feedProxy.php script used in the XHR request is a proxy that allows fetching data from external domains without running up against JavaScript s ... 11/15/07 10 :38 AM Page 105 Interface.ensureImplements(bicycle, Bicycle); return bicycle; }; /* GeneralProductsBicycleShop class. */ var GeneralProductsBicycleShop = function() {}; ext...

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... a collection of poorly designed APIs by wrapping them in a single well-designed API. JavaScript Libraries As Facades JavaScript libraries are built for humans. They’re designed to save time, ... Field. SelectField.prototype.getValue = function() { return this.select.options[this.select.selectedIndex].value; }; CHAPTER 9 ■ THE COMPOSITE PATTERN 132 908Xch09.qxd 11/16/07 10 :30 AM Page 132...

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... browsers implement the console object: /* SimpleProfiler class. */ var SimpleProfiler = function(component) { this.component = component; }; SimpleProfiler.prototype = { buildList: function() { var ... 'none'; parent.appendChild(this.element); CHAPTER 13 ■ THE FLYWEIGHT PATTERN 1 83 908Xch 13. qxd 11/15/07 11:04 AM Page 1 83 Wrapping the Webmail API in an Adapter Now that the app...

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... = []; // The number of days in each month. this.numDays = [31 , isLeapYear(this.year) ? 29 : 28, 31 , 30 , 31 , 30 , 31 , 31 , 30 , 31 , 30 , 31 ]; for(var i = 0, len = 12; i < len; i++) { this.months[i] ... Protection Proxy The virtual proxy is probably the most useful type of proxy to JavaScript programmers. Let’s briefly go over the other types and explain why they aren’t a...

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... MenuCommand(function() { myObj.someMethod(); }); CHAPTER 16 ■ THE COMMAND PATTERN 233 908Xch16.qxd 11/16/07 10 :31 AM Page 233 this.element = document.createElement('li'); this.element.innerHTML ... subject. The protection proxy controls which clients can access methods of the real subject. It is impossible to implement in JavaScript and was ignored in this chapter. The remot...

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... conventions, 30 32 singleton with, 70–75 syntax for, 75 through closures, 33 35 private methods, 25, 37 , 39 , 204 privileged functions, 110 privileged methods, 34 , 110 programming styles, 3 protection proxies, ... pattern, 225–226, 230 – 235 V validate function, 127–128 var keyword, 36 , 67, 75 variables closures for, 33 35 constants, 37 38 singleton, 66 virtual proxies, 199–...

Ngày tải lên: 12/08/2014, 23:20