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What do you need to know to create my own Ajax Functionality?

What do you need to know to create my own Ajax Functionality?



Asked On2022-01-12 06:39:54 by:shwet0710

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 If you plan not to reuse and existing AJAX component here are some of the things you will need to know.
 Plan to learn Dynamic HTML (DHTML), the technology that is the foundation for AJAX. DHTML enables   browser-base realtime interaction between a user and a web page. DHTML is the combination of JavaScript,   the Document Object Model (DOM) and Cascading Style Sheets (CSS).
 * JavaScript - JavaScript is a loosely typed object based scripting language supported by all major browsers   and essential for AJAX interactions. JavaScript in a page is called when an event in a page occurs such as a   page load, a mouse click, or a key press in a form element.
 * DOM - An API for accessing and manipulating structured documents. In most cases DOM represent the   structure of XML and HTML documents.
 * CSS - Allows you to define the presentation of a page such as fonts, colors, sizes, and positioning. CSS   allow  for a clear separation of the presentation from the content and may be changed programmatically by   JavaScript.
 Understanding the basic request/response nature of HTTP is also important. Many subtle bugs can result if   you ignore the differences between the GET and OIst methods when configuring an XMLHttpRequest and   HTTP response codes when processing callbacks.
 JavaScript is the client-side glue, in a sense. JavaScript is used to create the XMLHttpRequest Object and   trigger the asynchronous call. JavaScript is used to parse the returned content. JavaScript is used to analyze   the returned data and process returned messages. JavaScript is used to inject the new content into the HTML   using the DOM API and to modify the CSS.

Answerd on:2022-01-13 Answerd By:Raj-Gupta

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