


Classic label switching effect code implemented by JS DIV CSS_javascript skills
The example in this article describes the classic label switching effect code implemented by JS DIV CSS. Share it with everyone for your reference. The details are as follows:
Here is a demonstration of the label switching effect code implemented by JS DIV CSS. In layman's terms, it is the effect of sliding doors. It is a very good example. I hope it will be helpful for you to learn JS CSS layout.
The screenshot of the running effect is as follows:
The online demo address is as follows:
http://demo.jb51.net/js/2015/js-div-css-bq-cha-tab-style-codes/
The specific code is as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>DIV CSS布局实例:CSS标签切换代码</title> <style type="text/css"> * {list-style-type:none; font-size:12px; text-decoration:none; margin:0; padding:0;} a {behavior:url(xuxian.htc)} .woaicss {width:438px; height:300px; overflow:hidden; margin:50px auto;} .woaicss_title {width:438px; height:30px; background:#fff url(images/btn_bg.png) no-repeat; overflow:hidden;} .woaicss_title li {display:block; float:left; margin:0 2px 0 0; display:inline; text-align:center;} .woaicss_title li a {display:block; width:90px; heigth:30px; line-height:34px; color:#fff;} .woaicss_title li a:hover {color:#f0f0f0; text-decoration:underline;} .woaicss_title_bg1 {background-position:0 0;} .woaicss_title_bg2 {background-position:0 -30px;} .woaicss_title_bg3 {background-position:0 -60px;} .woaicss_title_bg4 {background-position:0 -90px;} .woaicss_con {display:block; width:438px; height:270px; background:url(images/con_bg.png) no-repeat 0 0; overflow:hidden;} .woaicss_con ul {width:418px; height:250px; margin:12px auto;} .woaicss_con li {width:418px; line-height:30px; margin:0 auto; white-space:nowrap; text-overflow:ellipsis; overflow: hidden;} .woaicss_con li a {color:#03c;} .woaicss_con li a:hover {color:#069; text-decoration:underline;} .woaicss_copy {width:438px; margin:10px auto; text-align:center;} .woaicss_copy a {color:#f00;} </style> </head> <body> <div class="woaicss"> <script language="javascript"> function woaicssq(num){ for(var id = 1;id<=4;id++) { var MrJin="woaicss_con"+id; if(id==num) document.getElementById(MrJin).style.display="block"; else document.getElementById(MrJin).style.display="none"; } if(num==1) document.getElementById("woaicsstitle").className="woaicss_title woaicss_title_bg1"; if(num==2) document.getElementById("woaicsstitle").className="woaicss_title woaicss_title_bg2"; if(num==3) document.getElementById("woaicsstitle").className="woaicss_title woaicss_title_bg3"; 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I hope this article will be helpful to everyone’s JavaScript programming.

C and JavaScript achieve interoperability through WebAssembly. 1) C code is compiled into WebAssembly module and introduced into JavaScript environment to enhance computing power. 2) In game development, C handles physics engines and graphics rendering, and JavaScript is responsible for game logic and user interface.

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.


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