JavaScript

① First, use C # in the background to obtain menu data in the database and generate a JSON array containing menu data items (order by in SQL is not used for some reason), as follows:   View sourceprint? Var menuData1 = [{"Orderid":-10, "text":

This article describes how to solve ajax request Garbled text (Chinese Garbled text). For more information, see Today, I encountered a problem with garbled characters concerning the transmission of Chinese Characters in ajax requests.   The

Javascript Regular Expression detection only contains Chinese characters, numbers, letters, and underscores. It cannot start or end with or after a hyphen. I encountered a user name check problem and checked it. The following is a summary example:

A few days ago, I learned that there was a simplified data exchange format called yaml. I have reviewed its documents, but I don't know much about it, but one sentence makes me feel confused. In terms of structure, all data can be divided into

After studying javascript in depth recently, some individuals will: Object-oriented programming is efficient and flexible, and it is now the only programming method that can make code more robust. If we leave out those mysterious ideas such as

This article describes how to improve the efficiency of JavaScript code execution at the data access level. In general, there are the following principles: In a function, reading and writing local variables is always the fastest, while reading

In his new book (Javascript Patterns), Stoyan Stefanov introduces many techniques for writing high-quality code, such as avoiding using global variables and using a single var keyword, cyclic pre-storage length and so on. This article not only

The following table shows the result of the same source test as http://store.company.com/dir/page.html: To solve cross-origin problems, we can use the following methods: 1. Cross-origin through jsonp In js, we cannot directly use XMLHttpRequest

This article mainly introduces two examples of Javascript sort algorithms for merging and sorting (merging and sorting). For more information, see Merge sort is an effective Sorting Algorithm Based on the Merge operation. This algorithm is a very

I. Array Operations 1. Create an arrayCopy codeThe Code is as follows:Var arrayObj = new Array (); // create an ArrayVar arrayObj = new Array ([size]); // create an Array and specify the length. Note that the length is not the upper limit.Var

The scroll event applies to window objects, but can also scroll the iframe framework and CSS overflow attributes to scroll elements.Copy codeThe Code is as follows:$ (Document). ready (function () {// I am used to writing this$ (Window). scroll

Note: 1. Because the obtained height is the same as the obtained width, the following only describes how to obtain the width.2. The values returned by all the methods and attributes described below are not in units.3. For convenience, the following

Background: Based on business needs, you need to load a lot of data in the grid, and then determine whether the data is selected based on a certain attribute of each data. Process: google found that a foreigner provided the following methods. Ext.

This is a trial to embed the underscore template utility into Dojo toolkit. define("myjs/Header",["dojo/_base/declare","dijit/_WidgetBase","dojo/text!./templates/header.html"],function(declare, _WidgetBase,tpl){ return

My computer environment: win7 64-bit System 1. Install mongoDB Go to the official website to download the http://www.mongodb.org/downloads to choose the version suitable for your system. After downloading and decompress the package, I decompress the

This article mainly describes how to prevent multiple submissions by JS users. For more information, seeThe Code is as follows: Document submit so easy!

The implementation of the drop-down menu is very simple, and can also be implemented with pure css, but I am not good at it. jquery is just two lines of code. As a result, the blog uses jquery + css to implement simple level-2 drop-down menu

It is very easy to use javascript to implement text flashing. In fact, you can use the style object to set the css attribute and use the timer to implement this function. The following is a simple js example: the js instance is as follows: & amp; lt;

The implementation principle of JS Object-oriented Inheritance is as follows: 1. use the call () method (Object impersonating Mechanism) to inherit the attributes of the parent class from call ([thisObj [, arg1 [, arg2 [,[,. argN]) & amp; nbsp; call

Thanks for writing oop, It is a database connection Class & lt ;? Phpclass & nbsp; db {public & nbsp; $ conn; function & nbsp ;__ construct () {$ this-& gt; conn = mysqli_connect ('localhost', 'root ', I wrote the oop Thanks. It's a database