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easy to bring out the scope chain, and finished. It's all easy to have the foundation of the previous sections, otherwise it will be difficult to explain.Let's start with a formal talk about a friend who's always looking forward to it--closures. Please look forward to the next section.---------------------------------------------------------------------------This article has been updated to the directory of in-depth understanding of JavaScript protot

Basic drag: 1 newDragdrop({ 2 target 拖拽元素 HTMLElemnt 必选 3 bridge 指定鼠标按下哪个元素时开始拖拽，实现模态对话框时用到 4 dragable 是否可拖拽 (true)默认 5 dragXtrue/falsefalse水平方向不可拖拽 (true)默认 6 dragYtrue/falsefalse垂直方向不可拖拽 (true)默认 7 area [minX,maxX,minY,maxY] 指定拖拽范围 默认任意拖动 8 callb

JavaScript free variables In JavaScript, you can use "delete" To manually delete variables, so that GC (garbage collection) to reclaim memory, but not all variables in JS can be deleted.1, the global variable "a" of the Var declaration is still "1" after using "delete a".2. The global variable "B", which was not declared with Var, became the property of "window"

+ ' data = data + ' data = data + ' VI. Create a new XMLHTTP object:if (window. ActiveXObject){Xmlhttp=new ActiveXObject ("Microsoft.XMLHTTP");}else if (window. XMLHttpRequest){Xmlhttp=new XMLHttpRequest ();}VII, add XMLHTTP, send headers, and send the package.Xmlhttp.open ("POST", URL, false);Xmlhttp.setrequestheader ("Content-type", "text/xml;charset=utf-8");Xmlhttp.setrequestheader ("SOAPAction", "http://WebXml.com.cn/getWeatherbyCityName");Xmlhttp.send (data);Eighth, deal with the content r

Free CSS Javascript Smart Tips EditorTool Name: Free JavaScript Editor? Tool Version:4.2Official Download:http://www.yaldex.com/This tool is really interesting, the 3.8 version needs to be paid, but by the 4.2 version it provides a permanent free use, which is really good n

easy to bring out the scope chain, and finished. It's all easy to have the foundation of the previous sections, otherwise it will be difficult to explain.Let's start with a formal talk about a friend who's always looking forward to it--closures. Please look forward to the next section.---------------------------------------------------------------------------This article has been updated to the directory of in-depth understanding of JavaScript protot

JSbooks has collected 32 excellent free JavaScript e-books, which are divided into three analogy: Elementary, intermediate, and advanced. You can download them based on your own needs. What a real success! Remember to add to favorites and share them :)Articles you may be interested in Verlet-js: Awesome open-source JavaScript physical engine recommendation

matter where the FN function will be called.What is described above is just a cross-step scope to look for.What if it's a step that hasn't been found yet? --Then cross! --continues across the global scope. If it's not found in the global scope, it's really gone.This step-by-step "cross" route, as we call it, is a chain of scopes.Let's summarize this "scope chain" procedure taken from a variable: (assuming A is free)In the first step, now the current

The 10 amazing free and Rich Text editors will enhance your website's functionality. We have collected 5 jQuery and 5 JavaScript editors, which have the same functions as office. When editing content online, those JavaScript-based editors helped us a lot. What we see is WYSIWYG. Today, any website Content Management System (CMS) and blog system need such an edito

Frame-free JavaScript script with scroll barsMainly by modifying the scrolling to remove the IFRAME scroll barThe code is relatively simpleThis article is from the "Xibalangei" blog, make sure to keep this source http://9897987.blog.51cto.com/9887987/1627351Frame-free JavaScript script with scroll bars