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the scope of a variableTo understand closures, you must first understand the special variable scope of JavaScript.The scope of a variable is nothing more than two kinds: global variables and local variables.The special point of the JavaScript

When making a Web project encounter a requirement, when the page has no precursor history (that is, the current is a new pop-up page, can not do GoBack operation is history.go (-1)), click Back button to close the page directly, otherwise you will

First step: Refer to jquery's plugin first jquery-1.9.1.min.jsStep two: Referencing the jquery.cookie.js pluginThe following actions on cookies: $.cookie ("CookieName", "Cookievalue", {expires:10, // Effective date is in days if this item is not

Some trouble.Usually do web development time about message delivery, in addition to client and server values there are several frequently encountered problems1. Data passing of the page and its open new window2. Message passing between multiple

Apache James builds intranet mail server Geek 521 | Geek 521 2014-08-21 148 readingJavaAbout two weeks ago, the seminar introduced the building of a. NET intranet mail server. So it is necessary for me to try to build a mail server, here is the tool

After developing a lot of jquery plug-ins, I slowly developed a set of jquery plug-ins to develop a comparative standard of the structure and mode. So I can copy & paste most of the code structure, just focus on the most important logic code on the

Instructions for useThe map cache button, which is used to generate a cache file for two-dimensional map data, optimizes the browsing effect of the map.Operation Steps1. Click the Map Cache button in the Ribbon > Data tab > Generate Cache group.2.

Phpstorm version: 10.0.3PHP Version: 5.5.12Xdebug version: Php_xdebug-2.2.5-5.6-vc11-x86_64.dllps:php version and Xdebug version must be relative1. PHP Installation Xdebug extensionPHP.ini configuration, the following configuration for reference

Table of Contents 1. File upload variable 2. Move temporary files on the server to the specified directory 3.php.ini upload related configuration 4.error error number 5. Single File upload instance 1. File Upload variable//$_files: File upload

What is HTTP?The Hypertext Transfer Protocol (HTTP) is designed to ensure communication between the client and the server.HTTP works as a request-response protocol between the client and the server.A Web browser might be a client, and a network

Before: In the work, if you find a bug, do not fantasize about being able to muddle through, others will not find, be sure to catch up with others before they find out!! Otherwise the result is, tomorrow on-line, today put forward this bug, request

In JavaScript, we rarely omit semicolons, and for unnecessary trouble and code, if we omit it, what happens? For more information, please listen to tell.Look at the code!Fragment One:1 var a2 = 3 Console.log (a); >>8Fragment Two:var ab= 8console.log

Before we formally learn about jquery Easyui, let's look at what jquery Easyui is. Its learning conditions, similar products on the market, supported browsers and so on. Then configure the run JQuery Easyui.First, what is jquery EasyuiThe jquery

First, downloadI'm using this version of 1.3.5, http://www.jeasyui.com/download/list.phpAfter decompression, 650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M01/7B/68/wKioL1bNUjazs_eAAABX7BUlGDk234.png "title=" QQ picture 20160224144619.png

In PHP, there are two ways to access a class's methods/variables:1. Create the object $object = new Class (), and then use the "-and" call: $object->attribute/function, provided the variable/method is accessible.2. Call the class method/variable

What is css clear float?In non-IE browsers (such as Firefox), when the height of the container is auto, and the contents of the container are floating (float is left or right), in which case the height of the container cannot be automatically

The scope of a variableTo understand closures, you must first understand the special variable scope of JavaScript.The scope of a variable is nothing more than two kinds: global variables and local variables.The special point of the JavaScript

In a closed article a few days ago we briefly introduced the closure, but there is no in-depth explanation, because the closure involves more knowledge points, in order to better understand the closure, today to explain about JS in the recycling

DOCTYPE HTML> HTML> Head> MetaCharSet=utf-8> Head> title>Ajax File Upload ~ ~title> Head> Script>window.onload=function(){ varform=document.getElementsByTagName ('form')[0]; Form.onsubmit=function(){ variframe=Document.createelement ('iframe');

Whether to select Blocks or Delegates during development In this case, I like to ask myself: "If the question is left to Apple, what will he do ?" Of course, we all know that Apple must know how to do this, because at a certain level, Apple's