JavaScript

Original: http://blog.csdn.net/primary_wind/article/details/40062985The JS cross-domain refers to the data transfer or communication between different domains via JS, such as using AJAX to request data from a different domain, or by JS to get the

The code information comes from http://ejohn.org/apps/learn/.Self-executing, temporary, function(function() { var count = 0This is a simple self-executing anonymous function.Make a click CountDocument.addeventlistener ("Click", (functionvar

Talking about numerical computation and character manipulationLet's start by analyzing the following code:hello worldvar value1;value1=2.1+3;document.write (value1+ "      "), Value1=5-3;document.write (value1+"      "); Value1=3*3.4;document.write (

Document JavaScript determines the size of the upload file

The code information comes from http://ejohn.org/apps/learn/.What happens when we bind a click event of an object to an event-triggering element?ulID= "Results">ul>Script>varButton={click:function(){ This. Clicked= true; } };

ThisWho this is, and the function that defines and executes there, is nothing to do with the function, just the one who calls the functions, this is the subject of the execution of the functions, who executes, this is who.Method Name () We just have

When I learned about the hide () part of jquery today, I suddenly had an idea that the implementation of the Hide/show part of jquery was to attach a "Display:none" attribute to the target element, so what would happen if I applied it in a layout

VariableA variable is an element, similar to a concept in mathematics, used to specify an object to represent.In JavaScript, the keyword used to specify a variable is var.When declaring a new variable, you can use the keyword "new" to declare its

PrototypeFunction: Gets the object prototype reference of the calling objectApplication: You can add a method to an object prototypeCases:functionGetmax () {varMax = This[0]; for(varx=0; x This. length; X + +) { if( This[x] >max) Max=

From nine JavaScript gotchas, here are nine pitfalls that JavaScript is prone to make mistakes. While not a very advanced technical issue, note that it will make your programming a little easier, known as making life easier. I will mix some comments

every day a JavaScript instance-canvas timer dynamically updates a line imgEvery day a JavaScript instance-canvas timer dynamically updates a line

With determines the area of an object's scope, the properties or methods of the secondary object within the with code snippet can be used directly.Cases:// For example, there are name,age properties and walk methods in Stu. With (Stu) { alert

First of all, thanks to dash , I don't have to look around for documents anymore. Thanks again for the eclipse, let me see the world's beauty All right, array, what's the fun way? Splice's fun. Splice can be removed from an array to add modification

Exclude Array Duplication Exclude array Repetition--javascript

Techniques and traps for Javascript objectsMethod 1 Create directly var obj = { name: "mike", age: 10 } Method 2 Create with new var ob = new Date(); Method 3 ECMAScript5 has a new method Object. create () In fact,

Extjs4.2 tooltip prompt width problem solved In the tooltip tip of Extjs4.2, the width is limited to 40 PX, it feels awkward, is a BUG, solution, in the ext-all-debug.js or ext-all.js, find the following code: Ext. define ('ext. tip. tip ',

Solution to the problem that the web page automatically submits when the form is press Enter. 1. When there is only one in the form, pressing the Enter key will automatically submit the form. Copy codeThe Code is as follows: Add another Copy

Jquery cross-origin callToday, remote data loading and page rendering are required in the project, and ajax cross-origin requests are not realized until the development stage. I vaguely remember that Jquery has proposed a solution for ajax

Responds to browser scroll bar events based on the navigation that is fixed on the top of jquery. Today, we will share with you a jquery-based navigation that is fixed at the top. This navigation item has a high navigation height when the browser

Javascript variable: Global? Or partial? Note ThisIn JS, there is no block-level scope. Here are two examples: If statement block: if (true){var name='Ling';}alert(name);Output: Ling     For statement block;   for(var i=0;i   Output: 10 Output: