JavaScript

JavaScript's performance in the browser can be said to be the most important usability issue that front-end developers face. In Yahoo's Yslow23 rule, one of them is to put JS on the bottom of the line. The reason is that, in fact, most browsers use

A Date object can also be used to compare two dates.The following code compares the current date with January 14, 2100:DivID= "NAV"> ul> Li>ahref= "#1"Target= "_self">What is International class?a>Li> Li>ahref= "#2"Target=

Ceiling lamp is a common function of each site, it has two features When you scroll down to the div position, the div remains fixed at the top of the page When you scroll up to the original Div position, the div reverts to the original

Closures (closure) are a difficult and unique feature of the JavaScript language, and many advanced applications rely on closures.Here is my study note, which should be useful for JavaScript beginners.The scope of a variableTo understand closures,

In object-oriented programming, a class is a template for objects (object) that defines properties and methods common to the same set of objects (also known as "instances").The JavaScript language does not support "classes," but you can use some

Today, when I was doing an old project, there was a need to decrypt the parameters in the URL in JavaScript and find this useful code from the Internet:[JavaScript]View Plaincopy After encountering the encryption and decryption problem,

As browsers evolve into the fourth generation (IE4 and Netscape Communicator 4), the browser team encounters an interesting question: which part of the page will have a specific event? Imagine having a set of concentric circles on a piece of paper,

parenthesesJavaScript small brackets have five semanticssemantics 1, Parameter table when function declarationfunctionFunc (ARG1,ARG2) {// ...}semantics 2, combined with some statements to achieve certain qualifiersUse with for for(varAinchobj) {// .

1. Here are several forms of function calls:The efficiency of various calls: in this article there is a talk about:http://suqing.iteye.com/blog/1981591Either of the following-patterns can be used to immediately invoke//a function expression,

HTML5 's audio tag provides us with the ability to control sound, but using native HTML5 to develop sound or music-related items is still a hassle, and in this article we'll cover 5 JavaScript audio libraries that help you simplify your development.

Angular model objects with JavaScript classesThe missing piece in AngularJS Unlike Backbone and Ember, AngularJS does not provide a standardized-to-define model objects. The model part of mvc*-Angular is the scope object, which are not, and we mean

1.asp.net Call JSResponse.Write ("");In this case, you can call the function of the JS script in the page to2. How the JS script accesses the value of the server controlThe interface has a TextBox control, ID Name,js can use the following script to

1. Custom attribute problems: You can get custom properties by using methods that get general properties, or you can use Getatribute () to derive a custom attribute, and only use getattribute () to derive a custom attribute under FF.2. In IE, you

One, what is closures?The official explanation is that closures are an expression (usually a function) that has many variables and environments that bind them, and so these variables are also part of the expression.It is believed that very few

After loading a page with Jquery. load, there is no page confusion in the style, and jquery. load Loads Because I didn't understand Jquery at first, I always wanted to use jquery. load Method to load a new page, to achieve partial refresh, The

Vertical center of webpage, vertical center untitled document & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; Vertical center of webpage Only tables are used! Q: How can I center the page vertically? Which man can give

Create a personalized and powerful Jquery virtual keyboard (VirtualKeyboard) and virtualkeyboard Recently I am working on a project. I am responsible for the front-end of a webpage. The customer needs to use a touch screen for operations without an

Properties of the window. location object, window. location Hash // The URL (Anchor) starting from) Host // host name and port number of the current URL Hostname // host name of the current URL Href // complete URL Pathname // the path of the

Javascript uses the arguments parameter to disguise the method for overloading Methods are overloaded in many object-oriented advanced languages. Javascript has no way to overload this concept. However, we can use the arguments parameter to disguise

22 required css skills and 22css skills1. Change the background and color of the selected text ::selection{ /* Safari and Opera */ background:#c3effd; color:#000;}::-moz-selection{ /* Firefox */ background:#c3effd; color:#000;}2. Prevent