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XMLHttpRequest (XHR) is an API in the form of a JavaScript object whose methods transmit HTTP requests from a web browser to a web server. [1] The methods allow a browser-based application to send requests to the server after page loading is complete, and receive information back. [2] XMLHttpRequest is a component of Ajax programming.
This convention is commonly used in Pascal, Java, C#, and Visual Basic. Treatment of initialisms in identifiers (e.g. the "XML" and "HTTP" in XMLHttpRequest) varies. Some dictate that they be lowercase (e.g. XmlHttpRequest) to ease typing, readability and ease of segmentation, whereas others leave them uppercased (e.g. XMLHTTPRequest) for accuracy.
The webpage can be modified by JavaScript to dynamically display (and allow the user to interact with) the new information. The built-in XMLHttpRequest object is used to execute Ajax on webpages, allowing websites to load content onto the screen without refreshing the page. Ajax is not a new technology, nor is it a new language.
ProcessRequest: A method that contains the actual request processing logic. [5] Developers can create custom HTTP handlers to implement specialized functionality, such as: 1. Generating dynamic images or documents on-the-fly. 2. Implementing custom authentication or authorization schemes. 3. Handling specific file types or URL patterns in a ...
XMLHttpRequest, a JavaScript class for Ajax programming Topics referred to by the same term This disambiguation page lists articles associated with the title XHR .
C# (/ ˌ s iː ˈ ʃ ɑːr p / see SHARP) [b] is a general-purpose high-level programming language supporting multiple paradigms.C# encompasses static typing, [16]: 4 strong typing, lexically scoped, imperative, declarative, functional, generic, [16]: 22 object-oriented (class-based), and component-oriented programming disciplines.
The concept of a "web application" was first introduced in the Java language in the Servlet Specification version 2.2, which was released in 1999. At that time, both JavaScript and XML had already been developed, but the XMLHttpRequest object had only been recently introduced on Internet Explorer 5 as an ActiveX object.
The Simple Common Gateway Interface (SCGI) is a protocol for applications to interface with HTTP servers, as an alternative to the CGI protocol. It is similar to FastCGI but is designed to be easier to parse.