Introduction to Javascript

 Hello friends and welcome to innovatetechnexus. From today, we are going to launch a new series of tutorials on Javascript. 

If you are new to web development and want to learn how to create website and get visitors to like it then you must know first know about Front End Programming languages . 

As they are basic for web development and also if you are in to Hacking or Web Security testing . In our tutorials we will do our best to make it simple and easy so every body is comfortable to learn.

Alright now, let get Started!

Introduction to Javascript ?

Javascipt is a high-level, light weight, dynamic, untyped, and Interpreted programming language. It has been standardized in the ECMAScript language specification.

Javascript is the most commonly used as a part of web pages whose implementations allow user-side script to interact and this helps us to make the web pages to act in a way that it behaves  as a dynamic pages. It is a kind of object oriented language.

In the beginning when Javascript was fist invented it was know as LiveScript, but Netscape changes its name to Javascript maybe because Java was on its heights at that time. Javascript was first introduced in Netscape 2.0 in 1995 with the name LiveScript. The most common core of the language have been implemented in the most famous web browsers like Internet Explorer, Netscape, Google Chrome, and many other web browsers.
But Remember:

Javascript has nothing to do with java. Similarity in the names does not mean that javascript is somewhere related to java. You do not need to know java to learn javascript. -Hacoder

Javascript as a Client-Side Technology:-

Client-side Javascript is the most common form of Javascript programming language. The script should be included in or referenced by an HTML document for the code to be used by the browser.

That means that a s web pages now don’t have to be static HTML, but now we can include programs with in the static HTML that interact with the user, control the browser, and dynamically create HTML content. This can be done by inserting Javascript in to the code of the webpage .

Javascript is used to trap user triggered actions like clicking buttons, Link navigation, and other actions.

Things you can do with Javascript:-

There are a lot of things which  can be done using Javascript. Here are some

• Make your web pages responsive.
• Detect visitors’ browsers.
• Validate web form data.
• Create cookies.
• Create cool animation effects.
• Create a Drag-and-Drop interface for uploading files.

and plenty more….. -Hacoder

Things which are not possible:-

There are some things which are not possible by the help of Javascript. Some are here :

• You can’t force Javascript on browser:- As Javascript is a client side programming language and it runs in the browser . If you have a old browser which don’t support Javascript or if someone have disabled Javascript in the browser than Javascript won’t be executed.
• You can’t access server side resources:- As Javascript is a client-side language, and is limited and usually work in the browser environment. Javascript can’t really access server side information such as databases. But its functionality can be increased by using some frameworks like MEAN Stack . By using it you can access NoSQL.