Remote scripting is a technology which allows scripts and programs that are running inside a browser to exchange information with a server. The local scripts can invoke scripts on the remote side and process the returned information.
The earliest form of asynchronous remote scripting was developed before XMLHttpRequest existed, and made use of very simple process: a static web page opens a dynamic web page (e.g. at other target frame) that is reloaded with new JavaScript content, generated remotely on the
server side.
The
XMLHttpRequest
XMLHttpRequest (XHR) is an API in the form of an object whose methods transfer data between a web browser and a web server. The object is provided by the browser's JavaScript environment. Particularly, retrieval of data from XHR for the purpos ...
and similar "
client-side script remote procedure call
In distributed computing, a remote procedure call (RPC) is when a computer program causes a procedure ( subroutine) to execute in a different address space (commonly on another computer on a shared network), which is coded as if it were a normal ( ...
" functions, open the possibility of use and triggering
web services from the web page interface.
The web development community subsequently developed a range of techniques for remote scripting in order to enable consistent results across different browsers. Early examples includ
JSRSlibrary from 2000, the introduction of the Image/Cookie technique in 2000.
JavaScript Remote Scripting
JavaScript Remote Scripting (JSRS) is a web development technique for creating interactive web applications using a combination of:
*HTML (or
XHTML
Extensible HyperText Markup Language (XHTML) is part of the family of XML markup languages. It mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated.
While HTML, prior ...
)
* The
Document Object Model
The Document Object Model (DOM) is a cross-platform and language-independent interface that treats an XML or HTML document as a tree structure wherein each node is an object representing a part of the document. The DOM represents a document wi ...
manipulated through
JavaScript
JavaScript (), often abbreviated as JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. As of 2022, 98% of websites use JavaScript on the client side for webpage behavior, of ...
to dynamically display and interact with the information presented
* A transport layer. Different technologies may be used, though using a script tag or an iframe is used the most because it has better browser support than
XMLHttpRequest
XMLHttpRequest (XHR) is an API in the form of an object whose methods transfer data between a web browser and a web server. The object is provided by the browser's JavaScript environment. Particularly, retrieval of data from XHR for the purpos ...
* A data format.
XML
Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable ...
with
WDDX
WDDX (Web Distributed Data eXchange) is a programming language-, platform- and transport-neutral data interchange mechanism designed to pass data between different environments and different computers.
History
WDDX was created by Simeon Simeonov ...
can be used as well as
JSON or any other text format.
Schematic
A similar approach is
Ajax
Ajax may refer to:
Greek mythology and tragedy
* Ajax the Great, a Greek mythological hero, son of King Telamon and Periboea
* Ajax the Lesser, a Greek mythological hero, son of Oileus, the king of Locris
* ''Ajax'' (play), by the ancient Gree ...
, though it depends on the XmlHttpRequest in newer web browsers.
Libraries
Brent Ashley's original JSRS library released in 2000BlueShoes JSRS with added encoding and OO RPC abstractions*
MSDN article
See also
*
Ajax
Ajax may refer to:
Greek mythology and tragedy
* Ajax the Great, a Greek mythological hero, son of King Telamon and Periboea
* Ajax the Lesser, a Greek mythological hero, son of Oileus, the king of Locris
* ''Ajax'' (play), by the ancient Gree ...
*
Rich Internet application
A rich web application (originally called a rich Internet application, or RIA or installable Internet application) is a web application that has many of the characteristics of desktop application software. The concept is closely related to a sing ...
External links
*
*
Web development
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