JavaScript

Page of the IMG element, want to get its original size, take the width as an example may be the first thought is width, as follows The Getwh method used here is mentioned in the previous article. The width you get is the same as the original

In the use of JSON2. JS file Json.parse (data) method, encountered a problem: throw new SyntaxError (' Json.parse '); Query information, the approximate meaning is as follows: The Json.parse method throws a SyntaxError exception when it

Flash upload more than a picture, can be JS imitation flash see not much, but also the work needs, try to write and read! And behold, the idea is really workable. First look at the effect chart (under FF): Here's my whole idea: First, use

The first and second sections of this series introduce JavaScript module prototypes and theoretical concepts, and today we describe how they can be used in combat. I'm using a very popular library require.js. One, why should use Require.js? At

This is the last new version before version 2.0, with many new features, one of which is to support the source Map. Access Http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js, open the compressed version, scroll to the bottom, you can

What are the hardest places to learn about JavaScript? I think the object is the hardest. Because the object model of JavaScript is unique and is different from other languages, beginners are not easy to master. The following is my study notes, I

As mentioned above (understanding the JavaScript prototype and scope series (1)-Everything is an object), a function is a kind of object because it can be judged by the instanceof function. var fn = function () {}; Console.log (FN instanceof

Sometimes you will need JS to write some functions to test, if you need to test execution time, you may need a stopwatch: Stopwatch class: function stopwatch () { } StopWatch.prototype.Start = function () { THIS.STARTD =

As a website development Web front-end engineers, to their own development of the site project should be as far as possible to optimize its performance, now on the Internet search on the site performance optimization is reproduced from the YAHOO14

Today's simple learning about the definition of object literals and how JavaScript takes out the value of object literals, JavaScript dynamically adds data to HTML pages. "Learning goals" is a set of data that is passed through Ajax: var dataList

First of all, let's take a look at a piece of code and see how it feels, and this article will be good for you: var player = function (e) {Return (function f (m) { return m? (function (n) { return $ (' #Player ', N). Get (0) | | F ($ (' iframe ',

Include syntactic sugar to help the development of out interface.Function.prototype.method = function (name, FN) {This.prototype[name] = fn;return this;}; (function () {function _$ (ELS) {//...} /*Events* Addevent* GetEvent*/_$.method (' addevent ',

Support for HTML, client script, and so on is built into Silverlight. In the previous article, invoking JavaScript in Silverlight, I'll describe how to invoke. NET code in Silverlight with JavaScript. Using RegisterScriptableObject The following

In the current version of JavaScript, this concept is not enumerated (of course, the enum has been reserved as a keyword in the ECMA-262 third edition). However, as there is no class in JavaScript, we can still implement it in an indirect way--json.

First, the basic JavaScript development environment JavaScript reference and JavaScript APIs: The JavaScript reference is used to create a library or DLL that contains JavaScript runtime, and then compile into a small "shell" program that connects

Class is one of the core concepts of object-oriented programming. A class represents the abstraction of a category of things with similar attributes. Starting with this article, we will formally enter the object-oriented part of JavaScript. The

Perhaps you would wonder why object-oriented programming begins with arrays. This is because ... In the midst of all the relationships ... Hey, let's sell a few words here first to see what our familiar array is like in JavaScript. 1. Create an

Javascript-I love a programming language, but the name is really bad. This program does not actually have any relationship with Java. I can confirm that. Now that ECMA is working on designing the next version of JavaScript (the code name is ES4),

IndexOf is strictly case-sensitive in JavaScript How can you ignore the case? Change them all to uppercase or lowercase, and compare them. IndexOf the character position of the substring for the first time within the object With toLowerCase or

The Split function method in JavaScript is to split a string into substrings and then return the result as an array of strings. How to use: 　　stringObj.split( [separator[, limit]]) Where stringobj is a required option. The String object or text to