JavaScript

Promise Core Description Although promise has its own specifications, but the current various types of promise libraries, in the promise implementation of the details are different, and some of the API even in the sense of a completely distinct.

JQ's UI has, Yui's widget also has. But also the package of solid, compatibility, versatility, are doing very well. So in the code is perfect, the amount of code is naturally not less. The code is hundreds of lines even if it is built on the base

Overview The RegExp constructor creates a regular expression object that matches the text with the pattern. For an introduction to regular expressions, read the regular expression chapters in the JavaScript guide. Grammar Text and construction

In general, to understand this code, you need to master the following two functions One is typeof, and one is the ternary operator. Read the above article and then look at the following is better to understand Generally used function code

The way JavaScript functions are declared and invoked is a tiresome cliché, but there's something like that, you say it again and I say it again. Every time I see the JavaScript function written in the book or blog has four kinds of calling way, I

Douglas Crockford has imparted a useful single case pattern (singleton patterns) to implement this rule, and I think his model is beneficial to your application based on Yui. Douglas called it modular Mode (module pattern). It works as

The full use of object-oriented design in JS can greatly improve code reuse, reduce the coupling between modules, better logical layering and parallel development. Here are a few steps to simply talk about my understanding. data type and Packing

Regular implementation of the ReplaceAll: function Replacelikeval (comp) { if (comp.value.indexOf ("")!=-1 | | Comp.value.indexOf ("\")!=-1) { //comp.value = comp.value.substring (0, comp.value.length-1); Comp.value =

This article is a small series of reference to other JS regular expression data collation, the main purpose of two: A: Self review summarized. Second: Easy to share the search。 JS Regular expression Interested friends can learn together, did not

The effect is as follows: The JavaScript code is as follows: Copy Code code as follows: var Calendar = function () { var self = this; Self.box = document.createelement ("div"); Self.head = document.createelement ("div");

The first step is to design the effect I want! I used the FW to the previous photo album effect (http://www.jb51.net/blogview.asp?logID=628) changed, design a simple effect chart! Step two, Layout! Copy Code code as follows:

In Flash we use a mask and a few simple scripts to implement a dynamic picture Magnifier. Now we can easily do this with JavaScript and CSS. 　　 Production Ideas: "Magnifier" has a background image, it is "enlarged" the original diagram. When we

The role of JavaScript design patterns is to improve the reusability and readability of your code, making it easier to maintain and extend your code In JavaScript, a function is a class of objects, which means that he can pass as arguments to other

Objective A Promise object can be understood as an action to be performed (often used for asynchronous operations), and a Promise object can be used to organize code in a chained way, making the code more intuitive. And because Promise.all such a

In practice, we can define interfaces in annotations and implement them in actual code. Like what: Copy Code code as follows: /* Interface Composite { function add (child); function remove (child); function Getchild (index);

Copy Code code as follows: /*----------------------------------- WEB Application JavaScript Library 2009.11 Janchie ------------------------------------*/ String native object extension empty left and right space String.prototype.trim =

2. Prototype mode Copy Code code as follows: /** * Person class: Defines a human, has a property name, and a GetName method */ function person () {} Person.prototype.name = "Jack"; Person.prototype.getName = function () {return

Copy Code code as follows: Ext.state.CookieProvider = function (config) { Ext.state.CookieProvider.superclass.constructor.call (this); This.path = "/"; This.expires = new Date (new Date (). GetTime () + (1000*60*60*24*7)); 7 days

Copy Code code as follows: first, use JSON to create an object in JavaScript JS Code Copy Code code as follows: Create an empty object var jsonobject = {} To create a new object var jsonobject = new Object

You can look at the following examples first [Ctrl + A All SELECT Note: If the need to introduce external JS need to refresh to perform] The primary purpose of JavaScript, the programming language, is to provide a page