DHTML:It's not a new language, it's a combination of HTML, CSS, and JavaScript, and DHTML contains 3 meanings:
(1) Marking pages as individual elements through HTML
(2) Use the layout style between elements of CSS design, and control the position of each mark
(3) Use JS to control each tag
JavaScript is made up of three parts:
(1) ECMAScript is a scripting language that is standardized by the European Computer Manufacturers Association (ECMA) through ECMA-262. ECMAScript defines all of the scripting language's
Attributes, objects, and methods, other languages can implement Ecmascipt as a benchmark for their functionality. ECMAScript includes JavaScript, ActionScript, and Scriptease
(2) DOM, is a browser, platform, language-independent interface, so that users can access the other standard components of the page. Dom resolves the conflict between Netscape and Microsoft,
Provides a standard way for Web developers to easily access data, scripts, and presentation-layer objects in a site.
(3) BOM, you can access and operate the browser window, using the BOM technology, Web developers can move windows, change the status bar and perform some of the content of the page is not related to the operation,
its characteristics are as follows: pops up a new browser window, moves the browser window off, and adjusts the window size
A navigation object that provides information about a Web browser;
Locating objects that provide detailed information about the page
Screen object that provides detailed parameters for screen resolution
Support Cookies A variety of browser features, such as IE ACTIVITX.
Web standards are not a standard, but a set of standards, the Web page is mainly composed of three parts: structure (Structure), performance (presentation) and behavior (behivior), the corresponding standards are divided into three
Aspects: Structured standard language, including XML and XHTML, performance standard language, mainly including CSS, behavioral standards, mainly including object model DOM, ECMAScript, etc.
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