how to add functions

Decorator mode: The ability to dynamically extend an object without having to change the original class file and use inheritance. It is by creating a wrapper object, that is, decorating to wrap the real objectFeatures of decorative modes (1) The

A. Classification:1, the scope of application when you have encapsulated a class (also may be the system class, the third party libraries), do not want to change the class, but with the increase in the function of the program need to add a method in

First, JS adds properties and methods to the prototype object.Mode one: The object's dynamic effects add members to the prototype objectSyntax: constructor. prototype. Method name =function () {}Mode two: Replace the prototype object (not overwrite,

Memcachedmemcached OverviewMemcached is a software developed by LiveJournal Danga Interactive Company. Memcached is a high performance , distributed Memory object caching system with versatility,The goal is to speed up the Dynamic Web program and

Recently learning C + +, the concept of namespace is rather curious, but the online information is very fragmented, and do not want to go through the thick C + + Primer Plus. So he experimented.1. and are not the same, the former has no suffix, in

Ajax, cross-domain, JSONPReference: JavaScript Advanced Programming Chapter 21st: AJAX operations in Ajax and Comet jquery Usage and differences for apply and call: Usage:Can inherit the methods and properties of another object, except

Ajax, cross-domain, JSONP Reference: JavaScript Advanced Programming Chapter 21st: AJAX operations in Ajax and Comet jquery Usage and differences for apply and call: Usage:Can inherit the methods and properties of another object,

1. Open Closure principleIn simple terms, it is对扩展开放，对修改封闭In object-oriented programming, various functions are often defined.The use of a function is divided into the definition phase and the usage stage, and after a function definition is complete,

The previous article has simply introduced the closure of the function. The closure of a function is a function that has access to another function scope, which in turn defines a function inside the function.1 varSuper=function(num) {2

thisUse of keywordsUsing in JavaScriptthisThe keyword represents the object that invokes the method, which is the same as most object-oriented languages. But becausecall、apply、bindThe effects of such functions, we can changethisThe object being

IOC:The IoC, the control reversal, is the relationship between the container control program and not the traditional implementation, which is implemented by the program code directly with new. Control is transferred from the application code to the

One: mcrypt introduction mcrypt is an extension of PHP that completes the encapsulation of common cryptographic algorithms. In fact, the extension is for the MCrypt Standard Class library encapsulation, MCrypt completed a considerable number of

Excel tables are one of the most frequently used office software in everyday life, and many users use Excel tables to record data. Today's small series for you to explain, in the process of making Excel tables, how to quickly add serial numbers, and

Queue and dequeue in  jquery are a useful set of methods that are particularly useful for a series of functions that require sequential operation. Special animate animations, Ajax, and timeout functions that require a certain amount of time The

1. Dynamically invoke methods within a Python file based on string name eval ("Function_name") (parameter)2. Dynamic invocation of a static method in a class based on a string, GetAttr (ClassName, "function_name") (parameter)3. Apply

Requires the default channel 50 and 60 to be set and a dual SIM card is supported. Add code to the Phoneapp.java file: At the beginning of the file, import the package: Copy Code code as follows: Import Android.provider.Telephony;

Using CSS3 to achieve the 1.5-month watermelon, using the queue to achieve the animation of eating watermelon. Practice examplesCSS3:1. Rounded Cornersborder-radius:100%;border-top-left-radius:5px;2. DeformationRotation: Transform:rotate

Introduction: In this series we use typed datasets to build the data access layer. As discussed in the first chapter, a typed Datasets DataTables is used as a "warehouse" for storing data, and TableAdapters as a channel to connect to the database

1, typeof (Param) Returns the type of Param (string) This method is the definition of JS in the global approach, but also compilers are the most commonly used method, the advantage is that the use of simple, good memory, the disadvantage is not

The biggest update for this 1.5 version is the full rewrite of Ajax, which provides greater scalability. But in terms of energy and space, the analysis of the new Ajax is put to the next, this article first briefly introduce the details of the