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JavaScript    
n.
Java描述语言[一种在HTML上使用的描述语言,能提高HTML的操作能力]

Java描述语言[一种在HTML上使用的描述语言,能提高HTML的操作能力]

(Formerly "LiveScript") {Netscape}'s simple,
cross-{platform}, {World-Wide Web} {scripting language}, only
very vaguely related to {Java} (which is a {Sun} trademark).
JavaScript is intimately tied to the {World-Wide Web}, and
currently runs in only three environments - as a {server}-side
{scripting} language, as an embedded language in
{server-parsed HTML}, and as an embedded language run in web
{browsers} where it is the most important part of {DHTML}.

JavaScript has a simplified {C}-like {syntax} and is tightly
integrated with the browser {Document Object Model}. It is
useful for implementing enhanced {forms}, simple web
{database} {front-ends}, and navigation enhancements. It is
unusual in that the {scope} of {variables} extends throughout
the function in which they are declared rather than the
smallest enclosing block as in C.

JavaScript originated from {Netscape} and, for a time, only
their products supported it. {Microsoft} now supports a
work-alike which they call JScript. The resulting
inconsistencies make it difficult to write JavaScript that
behaves the same in all browsers. This could be attributed to
the slow progress of JavaScript through the standards bodies.

JavaScript runs "100x" slower than {C}, as it is purely
interpreted ({Java} runs "10x" slower than C code).
{Netscape} and allies say JavaScript is an "open standard" in
an effort to keep {Microsoft} from monopolising web software
as they have desktop software. {Netscape} and {Sun} have
co-operated to enable {Java} and JavaScript to exchange
messages and data.

See also {VBScript}.

{Usenet} newsgroup: {news:comp.lang.javascript}.

Mailing List: ("subscribe javascript"
in body).

(2003-04-28)


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英文字典中文字典相关资料:


  • JavaScript Tutorial - W3Schools
    JavaScript is easy to learn This tutorial covers everything from basic JavaScript up to the latest 2026 version Start learning JavaScript now » With our Try it Yourself editor, you can edit the source code and view the result We recommend reading this tutorial, in the sequence listed in the menu
  • JavaScript - Wikipedia
    Although Java and JavaScript are similar in name and syntax, the two languages are distinct and differ greatly in design The first popular web browser with a graphical user interface, Mosaic, was released in 1993
  • JavaScript Tutorial
    JavaScript Tutorial provides you with many practical tutorials that help you learn JavaScript from scratch quickly and effectively
  • The Modern JavaScript Tutorial
    Here we learn JavaScript, starting from scratch and go on to advanced concepts like OOP We concentrate on the language itself here, with the minimum of environment-specific notes
  • JavaScript Tutorial - GeeksforGeeks
    JavaScript is a versatile language that powers various applications, from web development to mobile apps, making it an essential tool for modern programming Web Development: JavaScript is widely used in web development to create interactive and dynamic websites
  • JavaScript Comparison Operators - W3Schools
    W3Schools offers free online tutorials, references and exercises in all the major languages of the web Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more
  • What is JavaScript? - Learn web development | MDN
    Welcome to the MDN beginner's JavaScript course! In this article we will look at JavaScript from a high level, answering questions such as "What is it?" and "What can you do with it?", and making sure you are comfortable with JavaScript's purpose
  • JavaScript Guide - MDN
    The JavaScript Guide shows you how to use JavaScript and gives an overview of the language If you need exhaustive information about a language feature, have a look at the JavaScript reference
  • JavaScript Introduction - W3Schools
    What Can JavaScript Do? JavaScript is the programming language of the web It can calculate, manipulate and validate data It can update and change both HTML and CSS





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