JavaScript

1.12 3 //Define the person constructor4 varperson =function(firstName) {5 This. FirstName =FirstName;6 };7 8 //Making sure that this points to the right thing regardless of what the object is instantiated can be difficult.

/********************* Take window scroll bar height******************/function Getscrolltop (){var scrolltop=0;if (document.documentelement&&document.documentelement.scrolltop){Scrolltop=document.documentelement.scrolltop;}else if

IntroductionAs we all know, JavaScript data types are divided into two major classes, primitive type (or original type) and reference type.The basic types of values are simple data segments that are stored in the stack memory and are accessed by

This paper studies how to JS and other scripting languages communicate with ActiveX controls, how to pass various types of parameters, and COM's IDispatch interface. Using a similar approach, you can generalize to all other scripting languages, such

1. Print 99 multiplication table function Chengfa () { // repeatedly call formula for (var r=1;r) { for (var i=1,str= ""; i) { str=str+ (i+ "x" +r+ "=" +i*r+ "\ T") ; } Console.log

In the primitive chain inheritance method, JavaScript is inherited by an instance of another class (actually, the entity that uses one constructor function overwrites another object's prototype). The following code:Twodshape.prototype = new Shape ();

Original link:Http://www.cnblogs.com/Cohlint/archive/2012/11/26/2788790.html1.6 values will be false (==false), respectively, false,null,undefined, ', 0,nan2.typeof has 6 values, which are ' number ', ' String ', ' Boolean ', ' undefined ', '

Before the work encountered in the digital to Chinese scene, online find out the ready-made method more or less my taste, and finally wrote a self.Now I've tidied up and added traditional, custom characters, and inverse functions (Chinese numerals

After using components in 1.Sencha through layout: ' VBox ' specifies that the page layout is a vertical box layout and the height of the component is high: ' percent ' specifies the background color of the component through style: ' Background:

The first two sections say the basics of creating arrays, queue methods, sorting, and some operation methods, and this section is about iterative and merging methods.　　　　Every () method & Some () methodThese two methods run the given function for

1. Generic reserved Keywords Break Delete function Return typeof Case Do If Switch Var Catch Else Inch This void Continue

1. Understanding: Differences between prototype, getprototypeof and _proto_①c.prototype is used to build prototypes of objects created by new C ().②object.getprototypeof (obj) is the standard method used in ES5 to get the prototype object of the Obj

Implement the simplest Tab switching effect based on javascript, javascript Tab The examples in this article share the specific implementation code of js Tab switching effect for your reference. The details are as follows: Zhu Zhuan

Summary of how to use javascript Promise, javascriptpromise The nested callback function is too deep, and the parallel logic must be executed in a serial manner. A Promise represents the final result of an asynchronous operation. The main way to

Aveon long Chinese Character truncation, key character hiding, custom filter, aveon Filter About AvalonJS Aveon is a simple and easy-to-use mini MVVM framework, which was first released on January 15,. It was developed to solve various View

Recommended Method for refreshing session expiration time in Node. js, node. jssession In Node. js, we usually use the express-session package to use and manage sessions and save the session status between the server and the client browser. So how

Css border, css CSS border is used to set the border of HTML elements (such as div), including the border width, color, and style. This article introduces the details of CSS border attributes to coders. For more information about coders, see. CSS

How does Extjs4.0 ComboBox implement three-level linkage, Many netizens are asking how to implement Extjs4.0 ComboBox. Fortunately, a three-level linkage was implemented with 3. x, and now Extjs4.0 is used to achieve the same linkage effect. Note

Bootstrap component button (2) Bootstrap is an open-source toolkit launched by Twitter for front-end development. It was developed by Twitter designer Mark Otto and Jacob Thornton. It is a CSS/HTML framework. Button Group . Btn-group>. btn: A group

JQuery CSS3 custom beautification Checkbox implementation code, jquerycss3 : Is it better than the default one, and the Personal Aesthetic should still be OK. Next, let's take a look at the source code for implementing this simplified version of