History
Before the second browser war in 2008-2009, the JavaScript engine (also termed JavaScript interpreter or JavaScript implementation) was known as simply an interpreter that read and executed JavaScript source code.
The first JavaScript engine was created by Brendan Eich at Netscape Communications Corporation for the Netscape Navigator web browser. The engine, code named SpiderMonkey, is implemented in C++. It has since been updated (in JavaScript 1.5) to conform to ECMA-262 Edition 3. The Rhino engine, created primarily by Norris Boyd (also at Netscape) is a JavaScript implementation in Java. Like SpiderMonkey, Rhino is ECMA-262 Edition 3 compliant. Applications of the technology include Apple Safari 4's Nitro, Google Chrome's V8 and Mozilla Firefox 3.5's TraceMonkey.
By far the most common host environment for JavaScript is a web browser. Web browsers typically use the public application programming interface (API) to create "host objects" responsible for reflecting the Document Object Model (DOM) into JavaScript.
The web server is another common application of the engine. A JavaScript web server exposes host objects representing an HTTP request and response objects, which a JavaScript program then manipulates to dynamically generate web pages. Microsoft's ASP technology for IIS allows server-side code to be written in VB Script or JScript (Microsoft's implementation of JavaScript). Jaxer is a web server that runs entirely on JavaScript; this has the benefit of allowing the same code to be shared on the server and on the client.
Read more about this topic: Java Script Engines
Famous quotes containing the word history:
“Jesus Christ belonged to the true race of the prophets. He saw with an open eye the mystery of the soul. Drawn by its severe harmony, ravished with its beauty, he lived in it, and had his being there. Alone in all history he estimated the greatness of man.”
—Ralph Waldo Emerson (18031882)
“The view of Jerusalem is the history of the world; it is more, it is the history of earth and of heaven.”
—Benjamin Disraeli (18041881)
“In history as in human life, regret does not bring back a lost moment and a thousand years will not recover something lost in a single hour.”
—Stefan Zweig (18811942)