javascript design patterns pdf

'); - }); to return This; + }, -Addevent:function(Type, fn) { the varAdd =function(EL) { * if(widow.addeventlistener) { $El.addeventlistener (Type, FN,false)Panax Notoginseng } - Else if(widow.attachevent) { theEl.attachevent (' on ' +type, fn); + } A }; the + This. each (function(EL

=function () { the // ... - } - This. SetName =function () { - // ... + } - This. Setprice =function () { + // ... A } at //Object Public Properties - This. ID =ID - //Object Public Method - This. Copy =function () { - // ... - } in -}In OOP, there are two concepts: static properties and Static methods, both of which belong to the class, and not each object, the invocation can only be used by the class name plus point syntax, then how to implement JS?In

The plane puts the registration information in the tower, sends the data to the tower, and reports some information about the other aircraft.varFeiji =function(name) { This. Name =name;} Feiji.prototype.send=function(msg,to) {Console.log ( This. name+ "Send Message"); Tatai.sned (msg,to);}; Feiji.prototype.jieshou=function(msg) {Console.log ( This. name+ "[Received]" +msg);}varTatai ={all:{}, Zhuce:function(f) { This. all[f.name]=F; }, Sned:function(msg,to) { This. All[to.name].jieshou (msg); }}

1. How to use closures correctly 1. Common closures var asd = (function() {var value = 0 // private variable put in memory return function() { //Biubiubiu Launch Rocket }}); ASD ( ); 2. A closure problem caused by a reference var function () { var value = 0; return function () { // rocket launch }}var// Problem with closure as a reference to a function It's not a closed package.var function () { var value = 0; return function ()

constructor points to the returned objectvar function () { this. Name = ' Smartom ';} var New MyClass (); Console.log (obj.name); // back to SmartomHowever, when using new to call the constructor, it is also important to note that if the constructor returns an object of Type objects , then the result of this operation will eventually return this object, not the one we expected before;var function () { this. Name = ' Smartom '; return { "Bob Dylan" }}varnew myClass (); C

Monomer mode:Used to divide namespaces and reduce global scopecode example:　　　　1 var functiongroup = {2 Name: ' Darren ',3 Method1:function () {4//code5},6 init:function () {7//code8}9}　　1 var functiongroup =newfunction MyGroup () {2 this.name = ' Darren ';3 This.getname =function () {4 Returnthis.name5}6 This.method1 =function () {}7 ...8}Factory mode: facilitates decoupling between modules1 var xmlhttpfactory =function () {}; This is a simple factory model2 Xmlhttpfactory.createxmlhttp =func

Console.log (Footnall.intro); theFootnall.getmember ();2. It is implemented by creating a new object and then wrapping it to enhance its properties and functionality.The benefit of this implementation is that there is no need to create many class names. Some of the same features can be reused. The code is as follows:1 functionCreatepop (type, text) {2 varo =NewObject ();3O.content =text;4O.show =function() {5 //Display Method6 };7 if(Type = =

function is passed in, we can unsubscribe.SummarizeThe observer's use situation is that when an object's change needs to change other objects at the same time, and it doesn't know how many objects need to be changed, you should consider using the observer pattern.In general, the work of the observer pattern is decoupling, allowing both sides of the coupling to rely on abstraction, rather than relying on specifics. So that their changes will not affect the change on the other side.This article f

/** Small Game demo Broker Mode * Home Button 1 * Guest button 0 * in half a minute to see who presses the number of times * * Participants: * player * Scoreboard * Broker * * Intermediary mode makes the object loosely coupled, improving maintainability *///playervarPlayer =function(name) { This. Name =name; This. Point = 0;}; Player.prototype.play=function () { This. Point + = 1; Mediator.played (); //The broker updates the scoreboard every time the player presses the button};//Scoring Boa

The iterator pattern provides a way to sequentially access individual elements in an aggregated object without exposing the internal representations in the method.In jquery we often use a each function that is the iterator patternRoleProvides a unified interface for traversing different collection structures, enabling the same algorithm to operate on different sets of structuresWe can use the iterator pattern when the internal results of a collection are often different, we don't want to expose

/** Decorator Mode provides a more resilient alternative to inheritance * Add new properties or features without changing the original constructor*///classes (functions) that need to be decoratedfunctionMacbook () { This. Cost =function () { return1000; };}//Add a memoryfunctionMemory (MacBook) { This. Cost =function () { returnMacbook.cost () + 100; };}//and buy another insurance .functionInsurance (MacBook) { This. Cost =function () { returnMacbook.cost () + 250; };}varMym

Design Patterns-factory method patternsDr. Yan Hong's book "JAVA and patterns" describes the factory method patterns in this way:　　The Factory method mode is the class creation mode, also known as the Virtual Constructor mode or the Polymorphic Factory mode.The purpose of the factory method mode is to define a factory

Rendering 11.3.10 OnLoad Event 28711.4 Performance Measurement 28711.5 Cleanup Code 28911.5.1 using a simple direct code 28911.5.2 reduced by 29011.6 Reduce HTTP requests to a minimum of 29111.6.1 Series 29111.6.2 third-party code 29211.6.3 Image Flattening 29311.7 Server Settings 29311.7.1 Avoid redirection 29311.7.2 File Compression 29411.7.3 Browser Cache 29511.8 JavaScript 296What 11.8.1 JavaScript do

Java design mode, java design mode pdf This article is my learning notes, welcome to reprint, but please note the Source: http://blog.csdn.net/jesson20121020 One problem with the simple factory model in the previous section is that the creation of the class depends on the factory class. That is to say, if you want to expand the program, you must modify the factor

Java design mode, java design mode pdf This article is my learning notes, welcome to reprint, but please note the Source: http://blog.csdn.net/jesson20121020 The factory mode is the most common mode, because the factory mode is equivalent to creating A new instance object. We often need to generate instance Objects Based on Class, such as a A = new (), the facto

Java design mode, java design mode pdf This article is my learning notes, welcome to reprint, but please note the Source: http://blog.csdn.net/jesson20121020 Before looking at the basic principles of the design model, let's look at some basic object-oriented knowledge.1. The establishment of Object-oriented thinking

Java design mode, java design mode pdf [This article is my own learning notes. You are welcome to repost it, but please note the Source: http://blog.csdn.net/jesson20121020] The above three sections enable sorting of all types from the initial sorting of integer arrays to the final sorting of all types by defining their own comparator as needed, different

text content17.10 SummaryThe 18th Chapter Ajax IntroductionChapter 19th Standards and compatibility20th Chapter Information SecurityPart V beyond JavaScriptThe 21st Chapter Object-oriented22nd chapter closure and functional programming23rd chapter Management of the module levelThe 24th Chapter Dynamic Construction25th. Efficiency of Implementation25.1 Why to discuss the efficiency of execution25.2 The cost of closing25.3 The flow of fire in the box25.4 News--The devil and the Angels25.5 Let the

Proficient in CSS and HTML design patterns chapter 1 (easily deal with CSS) Proficient in CSS and HTML design patterns chapter 2 (HTML design patterns) Proficient in CSS and HTML design

Modular1.3 Classes and objects1.3.1 Single Responsibility PrincipleConstructors in 1.3.2PHP1.4 Customer class as requester1.5 how fast?1.5.1 Development and modification speed1.5.2 Team Speed1.6 What is wrong with sequential and procedural programming?1.6.1 Sequential Programming1.6.2 Process Programming1.6.3 instant return or long-term return2nd. Basic concepts of OOPThe 3rd Chapter basic design Pattern ConceptThe 4th chapter combines the use of