JavaScript

Recently, many tabs of the company's projects have been changed to the front-end pages of ajax.The paging plug-in previously written is not easy to use. rewrite Supports IE6 +, but has no animation effectIf there is no hard demand, I personally

@ * Remember the position of the scroll bar when you click the button to refresh the page *@Copy codeThe Code is as follows:

Sometimes you need to restrict the type of text box input content. In this section, the regular expression limits the text box to only enter numbers, decimal points, English letters, Chinese characters, and other code. For example, enter a positive

Js inheritance can be divided into two types: Object impersonating and prototype chain. I. Object impersonating includes three types: Temporary attributes, call (), and apply ()1. Temporary attribute MethodCopy codeThe Code is as follows:Function

 Recently, EXtjs was used as a project. When loading a large amount of data, loading times out. In FB, it turns out that ext's default ajax request is 30 seconds.Find the following solution on the Internet for your reference and other people's

JSON strings are parsed into JSON data formats in JS. There are two methods: 1. Use the eval_r () function. 2. Use the Function object for return parsing. In the data transmission process, json is transmitted in the form of text, that is, strings,

The Function Definition of JS can specify the formal parameter name. In more or less, we will assume that js can support at least different methods with different parameter numbers, but unfortunately this is just an illusion, all js parameters are

Callback function concept: a callback function is called by a function pointer. If you pass the pointer (address) of a function as a parameter to another function, when this pointer is used to call the function to which it points, we will say this

If a project needs to be processed by js in the json data returned by the server, add the check box and the check box to respond to JS operations.No ready-made Plug-ins are found in treegrid of easyui. You need to modify and organize the Code as

Copy codeThe Code is as follows: untitled document

Many websites now have this effect. If you enter a character in the text box and the matched content is displayed below, this Code demonstrates how this function is completed. Of course, this is static. You can read the prompt content from the

Copy codeThe Code is as follows:Function lastname (){// Obtain the path of the file to be uploadedVar filepath = document. getElementById ("file1"). value;// To avoid escape backslash problems, convert it hereVar re =/(\ +)/g;Var filename = filepath.

Copy codeThe Code is as follows: difference between ff and ie dynamic loading elements Awbpre:Awbno:When you click the Add button, Add two input boxes to the page dynamically and assign values to the two newly added input boxes. IE 6, 7, 8, 9

When it comes to object-oriented, we can think of classes, objects, encapsulation, inheritance, and polymorphism. Translated by Cao Li and Zhang Xin in "javaScript Advanced Programming Design" (People's post and telecommunications press.

Sometimes we need to remind users that there are new messages, which can be implemented using the following method. The effect is that when the webpage window does not obtain the focus and is minimized, the title bar "title" of the webpage window

Are you curious about how many recursive calls the JavaScript engine can perform? Number of recursive calls The following function can help you find the answer: (inspired by Ben Alman's gist)Copy codeThe Code is as follows:Function

The offset of the element can be obtained through four attributes: 1. offsetHeight: the size of the space occupied by the element in the vertical direction (in pixels ). Including the height of the element, (visible) the height of the horizontal

The jQuery plug-in AjaxFileUpload can upload ajax files. This plug-in is very simple to use. First, let's take a look at the correct method for using the AjaxFileUpload plug-in, and then learn some common error information and

Today, a friend asked me about how to use JAVASCRIPT to transfer data between various forms on the page. I wrote it before, but I never paid attention to it. Today I have summarized it, I hope to give you some help and summarize the previous and

It's just a basic idea. The specific practices are slightly more complicated: 1. If the script is introduced using src and the xhr or json method is used to obtain text, a background proxy may be required. 2. if the function is in the namespace, You