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ajax is a browser-side web development technology. Its full English name is "Asynchronous JavaScript and XML". Web applications using Ajax technology can quickly present incremental updates to the user interface without reloading the entire page, which allows the program to respond more quickly to user actions.
The operating environment of this article: windows7 system, javascript1.8.5&&html5 version, Dell G3 computer.
What technology does ajax belong to?
AJAX stands for "Asynchronous JavaScript and XML" (asynchronous JavaScript and XML technology), which refers to a set of technologies that combines multiple technologies Browser-side web development technology.
Ajax is a new term proposed by Jesse James Garrett in 2005 to describe a 'new' approach using a collection of existing technologies, including: HTML or XHTML, CSS, JavaScript, DOM, XML, XSLT , and most importantly XMLHttpRequest.
Using Ajax technology, web applications can quickly present incremental updates to the user interface without the need to reload (refresh) the entire page, which allows the program to respond to user operations faster.
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Building applications using ajax
The term Ajax comes from describing Web-based applications. to data-based applications.
Ajax is not a new programming language, but a technology for creating better, faster, and more interactive Web applications.
Use JavaScript to make requests to the server and process responses without blocking the user's core object XMLHttpRequest. Through this object, your JavaScript can exchange data with the web server without reloading the page, that is, it can produce a partial refresh effect without refreshing the page.
Ajax uses asynchronous data transfer (HTTP requests) between the browser and the web server, which allows a web page to request a small amount of information from the server instead of the entire page.
How AJAX works
Ajax can make Internet applications smaller, faster, and more user-friendly.
Ajax is a browser technology that is independent of Web server software. Ajax is based on the following web standards:
JavaScript, XML, HTML, and CSS. The web standards used in Ajax are well defined and supported by all major browsers. Ajax applications are browser and platform independent.
Web applications have many advantages over desktop applications; they can reach a wider range of users, they are easier to install and maintain, and they are easier to develop.
However, Internet applications are not as complete and user-friendly as traditional desktop applications. With Ajax, Internet applications can become more complete and user-friendly.
Recommended learning: "Ajax Video Tutorial"
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