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 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 computer network), which is written as if it were a ...
" functions, open the possibility of use and triggering
web services
A web service (WS) is either:
* a service offered by an electronic device to another electronic device, communicating with each other via the Internet, or
* a server running on a computer device, listening for requests at a particular port over a n ...
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 which mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated.
While HTML, pr ...
)
* The
Document Object Model
The Document Object Model (DOM) is a cros s-platform and language-independent API that treats an HTML or XML document as a tree structure wherein each node is an object representing a part of the document. The DOM represents a document with ...
manipulated through
JavaScript
JavaScript (), often abbreviated as JS, is a programming language and core technology of the World Wide Web, alongside HTML and CSS. Ninety-nine percent of websites use JavaScript on the client side for webpage behavior.
Web browsers have ...
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
* A data format.
XML
Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding electronic document, documents in a format that is both human-readable and Machine-r ...
with
WDDX can be used as well as
JSON
JSON (JavaScript Object Notation, pronounced or ) is an open standard file format and electronic data interchange, data interchange format that uses Human-readable medium and data, human-readable text to store and transmit data objects consi ...
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), ''Ajax'' (play), by the an ...
, 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), ''Ajax'' (play), by the an ...
*
Rich Internet application
External links
*
*
Web development
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