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This article introduces the relevant knowledge of "what are the components of a complete JavaScript?". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The British pronunciation of javascript is "skr pt", while the American pronunciation is "lightweight, interpretive or just-in-time programming language with function priority. It is often used to add a variety of dynamic functions to the web page to provide users with a more smooth and beautiful browsing effect.

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

JavaScript (abbreviated as "JS") is the most popular and widely used client script language, which is used to add some dynamic effects and interactive functions to web pages, and plays an important role in the field of Web development.

JavaScript is a lightweight, interpretive or just-in-time programming language with function priority. Although it is known as a scripting language for developing Web pages, it is also used in many non-browser environments. JavaScript is based on prototype programming, multi-paradigm dynamic scripting language, and supports object-oriented, imperative, declarative, and functional programming paradigms.

JavaScript was first designed and implemented in Netscape Navigator browser by Brendan Eich of Netscape in 1995. Because Netscape works with Sun, Netscape management wants it to look like Java, so it is named JavaScript. But in fact, its grammar style is similar to that of Self and Scheme.

JavaScript is a high-level scripting language belonging to the network, which has been widely used in Web application development. It is often used to add a variety of dynamic functions to web pages and provide users with a more smooth and beautiful browsing effect. Usually JavaScript scripts implement their own functions by embedding them in HTML.

A complete JavaScript consists of the following three parts:

ECMAScript: provides the syntax and basic objects of the language

Document object Model (DOM): provides methods and interfaces for dealing with web content

Browser object Model (BOM): provides methods and interfaces for interacting with browsers.

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