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Dynamic HTML, or DHTML, is a term which was used by some browser vendors to describe the combination of HTML, style sheets and client-side scripts (JavaScript, VBScript, or any other supported scripts) that enabled the creation of interactive and animated documents.
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.
While it may seem like that is the case in the example above, what is really happening is that the JavaScript engine of the browser creates an anonymous function containing the statements in the onclick attribute. The onclick handler of the element would be bound to the following anonymous function:
Separation of JavaScript and HTML: The jQuery library provides simple syntax for adding event handlers to the DOM using JavaScript, rather than adding HTML event attributes to call JavaScript functions. Thus, it encourages developers to completely separate JavaScript code from HTML markup.
The data-theme attribute tells the browser what theme to render. The data-add-back-btn attribute adds a back button to the page if set to true. Lastly, icons can be added to elements via the data-icon attribute. jQuery Mobile has fifty commonly-used icons built in. A brief explanation of the Data Attributes used in this example:
[12] [13] [14] The style attribute can be used on any HTML element (it will validate on any HTML element; however, it is not necessarily useful). It is considered better practice to add the style information to a style sheet, often accomplished with selectors that match the element class or ID. Sometimes, however, inline styles are favored ...
JavaScript is an event-based imperative programming language (as opposed to HTML's declarative language model) that is used to transform a static HTML page into a dynamic interface. JavaScript code can use the Document Object Model (DOM), provided by the HTML standard, to manipulate a web page in response to events, like user input.
RFC 1867 also introduced the accept attribute for the input element. This would enable file-type filtering based on MIME type for the file-select control. In addition, it is proposed that the INPUT tag have an ACCEPT attribute, which is a list of comma-separated media types.