XMLHTTPRequest
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XMLHTTPRequest
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. The methods allow a browser-based application to send requests to the server after page loading is complete, and receive information back. XMLHttpRequest is a component of Ajax programming. Prior to Ajax, hyperlinks and form submissions were the primary mechanisms for interacting with the server, often replacing the current page with another one. History The concept behind XMLHttpRequest was conceived in 2000 by the developers of Microsoft Outlook. The concept was then implemented within the Internet Explorer 5 browser (1999). However, the original syntax did not use the XMLHttpRequest identifier. Instead, the developers used the identifiers ActiveXObject("Msxml2.XMLHTTP") and ActiveXObject("Microsoft.XMLHTTP"). As of Internet Explorer 7 (2006), all browsers support the XMLHttpRequest identifier. The XMLHttpRequest identifier is now the ' ...
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Ajax (programming)
Ajax (also AJAX ; short for "asynchronous I/O, asynchronous JavaScript and XML") is a set of web development techniques that uses various web technologies on the client-side to create asynchronous web applications. With Ajax, web applications can send and retrieve data from a Web server, server asynchronously (in the background) without interfering with the display and behaviour of the existing page. By decoupling the data exchange, data interchange layer from the presentation layer, Ajax allows web pages and, by extension, web applications, to change content dynamically without the need to reload the entire page. In practice, modern implementations commonly utilize JSON instead of XML. Ajax is not a technology, but rather a programming pattern. Hypertext Markup Language, HTML and Cascading Style Sheets, CSS can be used in combination to mark up and style information. The webpage can be modified by JavaScript to dynamically display (and allow the user to interact with) the new i ...
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Internet Explorer 5
Microsoft Internet Explorer 5 (IE5) is the fifth version of the Internet Explorer graphical web browser, the successor to Internet Explorer 4 and one of the main participants of the first browser war. Its distribution methods and Windows integration were involved in the '' United States v. Microsoft Corp.'' case. Launched on March 18, 1999. Although Internet Explorer 5 ran only on Windows, its siblings Internet Explorer for Mac 5 and Internet Explorer for UNIX 5 supported Mac OS X, Solaris, and HP-UX. IE5 presided over a large market share increase over Netscape Navigator between 1999 and 2001, and offered many advanced features for its day. In addition, it was compatible with the largest range of OSes of all the IE versions. However, support for many OSes quickly dropped off with later patches, and later Windows versions are not supported, because of inclusion of later IE versions. The 1999 review in '' PC World'' noted, ''"Credit the never-ending game of browser one-upsma ...
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Anne Van Kesteren
Anne van Kesteren is an open web standards author and open source contributor. He has written and edits several web standards specifications including ''Fullscreen API'', ''XMLHttpRequest'', and ''URL''. Formerly worked on standards issues as a software engineer at Opera Software, he started working at Mozilla on 2013-02-04. He was Mozilla’s representative on the WHATWG Steering Group. He was an elected participant in the W3C Technical Architecture Group (TAG) from 2013 to 2014. Writing Van Kesteren is the author and editor of several web standards: * DOM Standard - defines a platform-neutral model for events and node trees. * Encoding (web standard) * Fetch (standard) - defines requests, responses, and the process that binds them: fetching. * Fullscreen (standard) - defines an API for elements to display themselves fullscreen. * HTML Living Standard (current co-editor) - foundational format of the Web * Notifications (standard) - defines an API to display notificatio ...
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HTTP Header
HTTP header fields are a list of strings sent and received by both the client program and server on every HTTP request and response. These headers are usually invisible to the end-user and are only processed or logged by the server and client applications. They define how information sent/received through the connection are encoded (as in Content-Encoding), the session verification and identification of the client (as in browser cookies, IP address, user-agent) or their anonymity thereof (VPN or proxy masking, user-agent spoofing), how the server should handle data (as in Do-Not-Track or Global Privacy Control), the age (the time it has resided in a shared cache) of the document being downloaded, amongst others. General format In HTTP version 1.x, header fields are transmitted after the request line (in case of a request HTTP message) or the response line (in case of a response HTTP message), which is the first line of a message. Header fields are colon-separated key-val ...
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World Wide Web
The World Wide Web (WWW or simply the Web) is an information system that enables Content (media), content sharing over the Internet through user-friendly ways meant to appeal to users beyond Information technology, IT specialists and hobbyists. It allows documents and other web resources to be accessed over the Internet according to specific rules of the HTTP, Hypertext Transfer Protocol (HTTP). The Web was invented by English computer scientist Tim Berners-Lee while at CERN in 1989 and opened to the public in 1993. It was conceived as a "universal linked information system". Documents and other media content are made available to the network through web servers and can be accessed by programs such as web browsers. Servers and resources on the World Wide Web are identified and located through character strings called uniform resource locators (URLs). The original and still very common document type is a web page formatted in Hypertext Markup Language (HTML). This markup lang ...
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Web Server
A web server is computer software and underlying Computer hardware, hardware that accepts requests via Hypertext Transfer Protocol, HTTP (the network protocol created to distribute web content) or its secure variant HTTPS. A user agent, commonly a web browser or web crawler, initiates communication by making a request for a web page or other Web Resource, resource using HTTP, and the server (computing), server responds with the content of that resource or an List of HTTP status codes, error message. A web server can also accept and store resources sent from the user agent if configured to do so. The hardware used to run a web server can vary according to the volume of requests that it needs to handle. At the low end of the range are embedded systems, such as a router (computing), router that runs a small web server as its configuration interface. A high-traffic Internet website might handle requests with hundreds of servers that run on racks of high-speed computers. A reso ...
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Application Programming Interface
An application programming interface (API) is a connection between computers or between computer programs. It is a type of software Interface (computing), interface, offering a service to other pieces of software. A document or standard that describes how to build such a connection or interface is called an ''API specification''. A computer system that meets this standard is said to ''implement'' or ''expose'' an API. The term API may refer either to the specification or to the implementation. In contrast to a user interface, which connects a computer to a person, an application programming interface connects computers or pieces of software to each other. It is not intended to be used directly by a person (the end user) other than a computer programmer who is incorporating it into software. An API is often made up of different parts which act as tools or services that are available to the programmer. A program or a programmer that uses one of these parts is said to ''call'' that ...
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World Wide Web Consortium
The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working together in the development of standards for the World Wide Web. W3C has 350 members. The organization has been led by CEO Seth Dobbs since October 2023. W3C also engages in education and outreach, develops software and serves as an open forum for discussion about the Web. History The World Wide Web Consortium (W3C) was founded in 1994 by Tim Berners-Lee after he left the European Organization for Nuclear Research (CERN) in October 1994. It was founded at the Massachusetts Institute of Technology (MIT) Laboratory for Computer Science with support from the European Commission, and the Defense Advanced Research Projects Agency, which had pioneered the ARPANET, the most direct predecessor to the modern Internet. It was located in Technology Square (Ca ...
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Copy Editing
Copy editing (also known as copyediting and manuscript editing) is the process of revising written material (" copy") to improve quality and readability, as well as ensuring that a text is free of errors in grammar, style, and accuracy. '' The Chicago Manual of Style'' states that manuscript editing encompasses "simple mechanical corrections (mechanical editing) through sentence-level interventions (linear editing) to substantial remedial work on literary style and clarity, disorganized passages, baggy prose, muddled tables and figures, and the like (substantive editing)". In the context of print publication, copy editing is done before typesetting and again before proofreading. Outside traditional book and journal publishing, the term "copy editing" is used more broadly, and is sometimes referred to as proofreading; the term sometimes encompasses additional tasks. Although copy editors are generally expected to make simple revisions to smooth awkward passages, they do not hav ...
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Opera Software
Opera (formerly Opera Software AS) is a Norwegian multinational technology corporation headquartered in Oslo, Norway with additional offices in European Union, Europe, China, and Africa. Opera offers a range of products and services that include a variety of Opera (web browser), PC and mobile web browsers, GameMaker and gaming portals, the Opera News content recommendation products, the Opera Ads platform, and a number of Web3 and e-commerce products and services. The company's total user base is 296 million monthly active users. Opera is now majority owned by the Chinese company Kunlun Tech Co., Ltd. On 27 July 2018, Opera Limited became a public company listed on the NASDAQ Stock Exchange, raising $115 million in its initial public offering. History Early development Opera was founded as an independent company in Norway in 1995 by the Icelandic Jon Stephenson von Tetzchner and Geir Ivarsøy. They had initially begun development of the Opera web browser while both w ...
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Web IDL
Web IDL is an interface description language (IDL) format for describing APIs (application programming interfaces) that are intended to be implemented in web browsers. Its adoption was motivated by the desire to improve the interoperability of web programming interfaces by specifying how languages such as ECMAScript should bind these interfaces. Description Web IDL is an IDL variant with: * A number of features that allow one to more easily describe the behavior of common script objects in a web context. * A mapping of how interfaces described with Web IDL correspond to language constructs within an ECMAScript execution environment. Web specifications had been specified using OMG IDL since 1998, first with the DOM Level 1 specification. However, interfaces defined using OMG IDL were not able to specify behavior for JavaScript precisely, leading to issues with interoperability. WebIDL improved on this status quo by providing data types and binding specifications that make the ...
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WHATWG
The Web Hypertext Application Technology Working Group (WHATWG) is a community of people interested in evolving HTML and related technologies. The WHATWG was founded by individuals from Apple Inc., the Mozilla Foundation and Opera Software, leading web browser vendors in 2004. WHATWG is responsible for maintaining multiple web-related technical standards, including the specifications for the HyperText Markup Language (HTML) and the Document Object Model (DOM). The central organizational membership and control of WHATWG – its "Steering Group" – consists of Apple, Mozilla, Google, and Microsoft. WHATWG community members work with the editor of the specifications to ensure correct implementation. History The WHATWG was formed in response to the slow development of World Wide Web Consortium (W3C) Web standards and W3C's decision to abandon HTML in favor of XML-based technologies. The WHATWG mailing list was announced on 4 June 2004, two days after the initiatives of a j ...
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