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Old 08-28-2016, 10:20 AM   #1
ehsanagar
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what is javascript

What you should already knowEDIT
This guide assumes you have the following basic background:

A general understanding of the Internet and the World Wide Web (WWW).
Good working knowledge of HyperText Markup Language (HTML).
Some programming experience. If you are new to programming, try one of the tutorials linked on the main page about JavaScript.
Where to find JavaScript informationEDIT
The JavaScript documentation on MDN includes the following:

Learning the Web provides information for beginners and introduces basic concepts of programming and the Internet.
JavaScript Guide (this guide) provides an overview about the JavaScript language and its objects.
JavaScript Reference provides detailed reference material for JavaScript.
If you are new to JavaScript, start with the articles in the learning area and the JavaScript Guide. Once you have a firm grasp of the fundamentals, you can use the JavaScript Reference to get more details on individual objects and statements.

What is JavaScript?EDIT
JavaScript is a cross-platform, object-oriented scripting language. It is a small and lightweight language. Inside a host environment (for example, a web browser), JavaScript can be connected to the objects of its environment to provide programmatic control over them.

JavaScript contains a standard library of objects, such as Array, Date, and Math, and a core set of language elements such as operators, control structures, and statements. Core JavaScript can be extended for a variety of purposes by supplementing it with additional objects; for example:

Client-side JavaScript extends the core language by supplying objects to control a browser and its Document Object Model (DOM). For example, client-side extensions allow an application to place elements on an HTML form and respond to user events such as mouse clicks, form input, and page navigation.
Server-side JavaScript extends the core language by supplying objects relevant to running JavaScript on a server. For example, server-side extensions allow an application to communicate with a database, provide continuity of information from one invocation to another of the application, or perform file manipulations on a server.
JavaScript and JavaEDIT
JavaScript and Java are similar in some ways but fundamentally different in some others. The JavaScript language resembles Java but does not have Java's static typing and strong type checking. JavaScript follows most Java expression syntax, naming conventions and basic control-flow constructs which was the reason why it was renamed from LiveScript to JavaScript.

In contrast to Java's compile-time system of classes built by declarations, JavaScript supports a runtime system based on a small number of data types representing numeric, Boolean, and string values. JavaScript has a prototype-based object model instead of the more common class-based object model. The prototype-based model provides dynamic inheritance; that is, what is inherited can vary for individual objects. JavaScript also supports functions without any special declarative requirements. Functions can be properties of objects, executing as loosely typed methods.

source : mozilla
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Old 10-04-2016, 01:42 AM   #2
Dubey675
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JavaScript is a programming language used to make web pages interactive. It runs on your visitor's computer and doesn't require constant downloads from your website. JavaScript is often used to create polls and quizzes.
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Old 12-08-2016, 02:09 AM   #3
kunalkumar
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Javascript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow client-side script to interact with the user and make dynamic pages. It is an interpreted programming language with object-oriented capabilities.
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Old 01-07-2017, 12:22 AM   #4
bellevoir
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Nice information, Tell me about node js.
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Old 01-12-2017, 02:28 AM   #5
speedweareu
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JavaScript is a cross-platform, object-oriented scripting language. It is a small and lightweight language. Inside a host environment (for example, a web browser), JavaScript can be connected to the objects of its environment to provide programmatic control over them.
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Old 01-26-2017, 10:51 PM   #6
tyagi
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Java script is a programming languages that is used to turn web pages into application.
Java script is used to manipulate the contents of a web pages and to allow users to interact with web pages without reloading the page.

Thank you!
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Old 04-18-2017, 03:48 AM   #7
anitatiwari01
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JavaScript is a programming language that allows you to implement complex things on web pages — every time a web page does more than just sit there and display static information for you to look at — displaying timely content updates.
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