Web Develop

Recently the company to do something to use JS, feel JS too cumbersome, so I learned the jquery, found that jquery is indeed powerful. Learning to jquery Ajax (using the tool is Eclipse), found the $.getjson () method to request the server's JSON

This problem involves three points:1. Execution context　　2. Execution context stack resulting from function nesting3. Closures1Concept:1. The Global Code (the code that executes when the page is opened) is executed, resulting in a "global execution

1. What is a cross-domain We often use Ajax on the page to request access to data from other servers, where there are cross-domain issues for the client. Cross-domain issues are caused by the same-origin policy in JavaScript language security

The camera is such an abstraction, it defines the three-dimensional space to the two-dimensional projection of the screen, with "camera" such an analogy, we can intuitively understand the projection method.The camera is divided into orthogonal

jquery is very handy for encapsulating Ajax.I wrote a small demo with the $.get () method, including the client and server.Client:DOCTYPE HTML>HTML>Head>MetaCharSet= "UTF-8">title>Insert Title heretitle>Scripttype= "Text/javascript"src="..

　　The so-called compatibility is to see whether the browser supports the current object's properties or methods, first to obtain the page text content of the way to understand compatibility, and encapsulate functions or objects to solve such

#!/usr/bin/env python#-*-coding:utf-8-*-ImportPSYCOPG2ImportJSON fromGeojsonImportloads, Feature, featurecollection#Database Connection InfoDb_host ="localhost"Db_user="Pluto"db_passwd="stars"Db_database="PY_GEOAN_CB"Db_port="5432"#Connect to DBconn

EventOnActivate Triggered when the object is set to the active element. onafterupdate Triggered on a data-bound object after successfully updating the associated object in the data source object.

At the time of the grand written examination, there are two problems, a topic is about static, together with the Clone () method;Static keywords, which can be used to modify variables and methods ;static variables (attributes):A static variable can

What if I want to know how many times the function was called? There is no good way to solve a static variable without learning it.Static variables are characterized by the declaration of a static variable, the second time the function is called,

var msg = ' String A '; function test () {alert (msg);  Undefined var msg = ' String A '; Alert (msg);} Test (); The above code is equivalent to:var msg = ' String A ';function Test () {var msg; Re-declaring variables at the top of the functionAlert

Original: http://www.zhangxinxu.com/wordpress/2009/11/css%E8%A1%8C%E9%AB%98line-height%E7%9A%84%E4%B8%80%E4%BA%9B%E6% b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e5%8f%8a%e5%ba%94%e7%94%a8/The height of the CSS in the role of the should be the height and

Transferred from: http://www.cnblogs.com/Sivan/p/5727083.htmlHTML5 Elements and Basic grammarHTML tagsStart tag (opening tag): Open tagEnd tag (closing tag): Closed labelElementsDefinition: HTML element refers to the code from the start tag to the

Online preview Source DownloadHow to useHTML StructureThe HTML structure of the mouse over the image effect is very simple: use an element as the image mask layer and place the picture's descriptive information in it. 12345678

The site will increase with the amount of traffic, and the log becomes more and more large, if ignored, will someday burst disk.So we should cut the log regularly every day, such as one months later, and then delete the outdated logs to ensure that

"myApp">"Content-type"Content="text/html; Charset=utf-8"> Untitled Document "Aaa"> "myApp">"Content-type"Content="text/html; Charset=utf-8"> Untitled Document "Aaa"> "myApp">"Content-type"Content="text/html; Charset=utf-8"> Untitled Document "Aaa"> "

4. How to get or set page text contentInnerTextInnerHTMLTextcontentDifference:4.1 Get page text content:InnerText only gets the text information between the tags, not including the tags, and innerhtml is to get all the content between the tags

The difference between HTML iframe and framesetBoth IFRAME and frameset are used for the frame layout of HTML pages.Directory:1. Tags: iframe is an inline frame, which creates an internal frame within the page.2. Tags: frameset defines a frameset

Different pages in the project often use already written interactions, such as pop-up windows, such as drop-down menus such as tabs, such as deleting ...At this point, if you copy a copy of the code every time is a more troublesome and uninteresting

Full name is afnetworking Although the operating efficiency is not ASI high, but the use is simpler than the ASI is a separate layer of nsurlconnection and nsurlsession packaging. The Runloop in the interior of the AFN AFN a