Javascript was developed by Netscape Company. It was first designed and implemented by Brendan Eich of Netscape Company on the Netscape Navigator browser in 1995; because Netscape management wanted it to look like Java, it was chosen Named JavaScript.
The operating environment of this article: Windows7 system, HTML5&&CSS3 version, Dell G3 computer.
JavaScript ("JS" for short) is a lightweight, interpreted or just-in-time compiled programming language with function priority. Although it is famous as a scripting language for developing Web pages, it is also used in many non-browser environments. JavaScript is a dynamic scripting language based on prototype programming, multi-paradigm, and supports object-oriented, imperative and declarative (such as functional programming) style.
JavaScript was first designed and implemented on the Netscape Navigator browser in 1995 by Brendan Eich of Netscape. Because Netscape was working with Sun, Netscape management wanted it to look like Java, hence the name JavaScript. But in fact its grammatical style is closer to Self and Scheme.
The standard of JavaScript is ECMAScript. As of 2012, all browsers fully support ECMAScript 5.1, and older browsers support at least the ECMAScript 3 standard. On June 17, 2015, ECMA International released the sixth edition of ECMAScript, which is officially called ECMAScript 2015, but is often called ECMAScript 6 or ES2015.
Main functions
1. Embed dynamic text in HTML pages.
2. Respond to browser events.
3. Read and write HTML elements.
4. Validate data before it is submitted to the server.
5. Detect the visitor’s browser information. Control cookies, including creation and modification.
6. Server-side programming based on Node.js technology.
[Recommended learning: javascript advanced tutorial]
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