通用方式:
$.ajax(prop) 通过一个ajax请求,回去远程数据,prop是一个hash表,它可以传递的key/value有以下几种。
(String)type:数据传递方式(get或post)。
((String)url:数据请求页面的url
((String)data:传递数据的参数字符串,只适合post方式
((String)dataType:期待数据返回的数据格式(例如 "xml", "html", "script",或 "json")
((Boolean)ifModified: 当最后一次请求的相应有变化是才成功返回,默认值是false
((Number)timeout:设置时间延迟请求的时间。可以参考$.ajaxTimeout
((Boolean)global:是否为当前请求触发ajax全局事件,默认为true
((Function)error:当请求失败时触发的函数。
((Function)success:当请求成功时触发函数
((Function)complete:当请求完成后出发函数
jQuery代码及说明
success:function(msg){
$(div"#a").html(msg);
}
});
type:"get",
dataType:"html",
data: "name=John&location=Boston",
success:function(msg){
$("#a").html(msg);
}
});
用get方式向ajax.aspx页面传参数,并将返回内容负给id为a的对象。
$.ajaxTimeout(time) 设置请求结束时间
$.ajaxTimeout( 5000 )
其它简化方式:
$.get(url, params, callback) 用get方式向远程页面传递参数,请求完成后处理函数,除了url外,其它参数任意选择!
{ name: "young", age: "25" },
function(data){ alert("Data Loaded: " + data); }
)
$.getJSON(url, params, callback) 用get方式向远程json对象传递参数,请求完成后处理函数callback。
$.getScript(url, callback) 用get方式载入并运行一个远程javascript文件。请求完成后处理函数callback。
$.post(url, params, callback) 用post方式向远程页面传递参数,请求完成后处理函数callback
load(url, params, callback) 载入一个远程文件并载入页面DOM中,并执行函数callback
loadIfModified(url, params, callback) Use the get method to pass parameters to the remote page. Only respond if the data has changed since the last request, and load the returned results into the page DOM. , and execute the function callback
ajaxStart(callback) When an error occurs in the ajax request, execute the function callback
ajaxComplete(callback) When the ajax request is completed, execute the function callback
ajaxError(callback) When an ajax request occurs, execute the function callback
ajaxStop(callback) When the ajax request stops, execute the function callback
ajaxSuccess( callback) Execute the function callback
when the ajax request is successful.
🎜>: jQuery plug-in
With the widespread use of jQuery, a large number of jQuery plug-ins have appeared, such as thickbox, iFX, jQuery-googleMap, etc. Simple You can easily use these plug-ins by referencing these source files. Here I briefly introduce some URLs for your reference. These website headers provide a large number of demos, and they are extremely easy to use. Even if you don’t have good E-text, you can quickly master them!
http://jquery.com/plugins Official recommendation http://interface.eyecon.ro/demos
The effect is great and easier to use. You must like it! http://www.dyve.net/jquery/
http://bassistance .de/jquery-plugins

JavaScript originated in 1995 and was created by Brandon Ike, and realized the language into C. 1.C language provides high performance and system-level programming capabilities for JavaScript. 2. JavaScript's memory management and performance optimization rely on C language. 3. The cross-platform feature of C language helps JavaScript run efficiently on different operating systems.

JavaScript runs in browsers and Node.js environments and relies on the JavaScript engine to parse and execute code. 1) Generate abstract syntax tree (AST) in the parsing stage; 2) convert AST into bytecode or machine code in the compilation stage; 3) execute the compiled code in the execution stage.

The future trends of Python and JavaScript include: 1. Python will consolidate its position in the fields of scientific computing and AI, 2. JavaScript will promote the development of web technology, 3. Cross-platform development will become a hot topic, and 4. Performance optimization will be the focus. Both will continue to expand application scenarios in their respective fields and make more breakthroughs in performance.

Both Python and JavaScript's choices in development environments are important. 1) Python's development environment includes PyCharm, JupyterNotebook and Anaconda, which are suitable for data science and rapid prototyping. 2) The development environment of JavaScript includes Node.js, VSCode and Webpack, which are suitable for front-end and back-end development. Choosing the right tools according to project needs can improve development efficiency and project success rate.

Yes, the engine core of JavaScript is written in C. 1) The C language provides efficient performance and underlying control, which is suitable for the development of JavaScript engine. 2) Taking the V8 engine as an example, its core is written in C, combining the efficiency and object-oriented characteristics of C. 3) The working principle of the JavaScript engine includes parsing, compiling and execution, and the C language plays a key role in these processes.

JavaScript is at the heart of modern websites because it enhances the interactivity and dynamicity of web pages. 1) It allows to change content without refreshing the page, 2) manipulate web pages through DOMAPI, 3) support complex interactive effects such as animation and drag-and-drop, 4) optimize performance and best practices to improve user experience.

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.


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