JavaScript, language for web pages

JavaScript is an object-oriented structured and dynamic scripting language for web pages.


Building web page requires knowledge of several programming languages: HTML or XHTML for content, CSS for design. With these two languages web pages will be static and accessible from any device you use to view the page. The biggest drawback of this situation is an interaction between the user and page. User has to wait for loading of new page every time he fills out the form. JavaScript makes web page more alive, allowing response to user’s actions without the need to reload the page.

Developing JavaScript

JavaScript was developed by Brendan Eich at Netscape. Its key points, that appealed to both professionals and beginners, were: lightweightness and simpleness. The language was originally named LiveScript during release in 1995. Later name was changed to JavaScript.

Such name choice was well thought out marketing move. Though JavaScript has almost nothing in common with Java, the latter was gaining popularity and Netscape decided to add a little bit of confusion and attention to its new product.
This interpreted language for web pages gained success very quickly. In 1996 JavaScript support was introduced by Microsoft in its web browser, Internet Explorer, in version 3.0. Microsoft's implementation was named JScript .

Nowadays, JavaScript is a part of Oracle Corporation.

Building with JavaScript

JavaScript is an structured and dynamic scripting language. The basic syntax was intentionally made similar to both C++ and Java to facilitate professional’s and newbie’s learning process.

JavaScript is both an object-oriented and procedural language. Once an object is constructed it can be used as a prototype for building of similar one. Runtime object construction, dynamic script creation, and source code recovery make JavaScript more dynamic.

JavaScript has implementation as part of web browsers that allows interaction with user and alteration of displayed content. But it is not only one way directed language. Games, desktop applications and server-side programming use JavaScript in their development.

Support products

To improve structure or design JavaScript developers may use additional web frameworks and libraries:

Converse.js adds webchat to a website

Converse.js is an open source web-based XMPP Instant Messaging client written in JavaScript that integrates a webchat client into any website. and collective.xmpp.core integrate Converse.js into Plone.

JWPlayer enriches media in Plone

JW Player is the most advanced and robust HTML5/Flash embeddable media player for the web with rich set of features. collective.js.jwplayer integrates JW Player into the Plone CMS.

Leaflet - interactive maps with JavaScript

Leaflet is a lightweight and powerful open-source JavaScript library for creating mobile-friendly interactive maps. Leaflet mapping resources can be integrated into Plone using collective.js.leaflet add-on.

Advance mathematical content on the web with MathJax

MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers, using MathML, LaTeX and ASCIIMathML markup. There is also MathJax integration for Plone - collective.mathjax.

Node.js for network apps

Node.js is a development framework that is used for building scalable server-side applications. This software platform gains popularity due to its network-centered nature and ease in programming and deploying apps.

Ember.js for maintainable single-page apps

Ember.js is a client-side framework. It is is the most optimal choice for scalable single-page application development. Ember.js incorporates selection of tools that will provide all necessary instruments for building ambitious web application.

CanJS balances rich features and ease of use

CanJS is lightweight client-side MVC JavaScript library for simple and fast application development. It is the best option if you want to find a compromise between small size and modern features.

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