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The $() function can also receive an element as parameter and will return, as in the previous example, a prototype extended object. var domElement = document . getElementById ( "id_of_element" ); // Usual object reference returned var prototypeEnhancedDomElement = $ ( domElement ); // Prototype extended object reference
JavaScript was released by Netscape Communications in 1995 within Netscape Navigator 2.0. Netscape's competitor, Microsoft, released Internet Explorer 3.0 the following year with a reimplementation of JavaScript called JScript. JavaScript and JScript let web developers create web pages with client-side interactivity.
Raphaël, named for Italian painter Raffaello Sanzio da Urbino, [3] is a cross-browser JavaScript library that draws Vector graphics for web sites. It will use SVG for most browsers, but will use VML for older versions of Internet Explorer .
JavaScript has many possibilities, for example adding text, including links, at the desired positions. This added content may depend on content on the HTML source page produced by the server; for example it may depend on HTML elements with an ID, by applying getElementById.
The HTML elements in the document are available as a hierarchical tree of individual objects, making it possible to examine and modify an element and its attributes by reading and setting properties and by calling methods. The text between elements is also available through DOM properties and methods.
This JavaScript example implementation provides the toJSON method used by the JSON.stringify() [9] function to serialize the class into a simple string instead of a composite data type. It calls Object.freeze() to make the instance immutable. [10] It overrides the built-in toString() method [11] and the valueOf() method. [12]
Image credits: protetormarciors Marcio shared more about his studies. “The academic experience has given me a new perspective on the animal cause. I believe that, with my life experience ...
Subsequent releases of JavaScript and JScript would implement the ECMAScript standard for greater cross-browser compatibility. After the standardization of ECMAScript, W3C began work on the standardization of Document Object Model (DOM), which is a way of representing and interacting with objects in HTML , XHTML and XML documents.