Node.js

Why & What is Node.js

JavaScript is famous as client side programming language. But there is some question as modern time demand.

• 1) Programmer can use as a server side programming language?
• 2) Is there anything which helpful to programmer For less code and more work?
• 3) For data storage and maintenance, we have anything?

Above three are first and prior question for any newest technology. However  there are many questions but These three are most.

Yes sure All we know the growth of JavaScript uses and development area is going to be developed very fast because of new generation of web technologies.

All these are satisfied by the JavaScript new technology NODE.js because in this you can write programming server and client side. You don’t need any other programming language for backend. Also there is very big community for NPM node package manager we can say it same as plug-in in other language. And for data storage we can use mongodb.

Finally,  what is NODE.js

Node.js is a JavaScript runtime it uses the V8 engine developed by Google for use in Chrome. V8 compiles and executes JavaScript at lightning speeds mainly due to the fact that V8 compiles JavaScript into native machine code.

The real magic thing behind Node.js is the event loop or non-blocking I/O model .

Node.js = Runtime Environment + JavaScript Library

 Features of Node.js

It’s fast :

synchronously (blocking) or a old approach  taking lot of time and consumes a lot memory But because of a asynchronously reading and writing to network connections, reading/writing to the file system, and reading/writing to the database–all very common tasks in web apps–execute very, very fast in Node.

Nothing but JavaScript:

It is nothing but only JavaScript so programmers don’t need to learn any extra programming language. because most of programmer know JavaScript.

Huge community:

JavaScript has a huge community for the JavaScript cast. So any relevant problem can be solved by many ways. And can get market of Node.js.

Real time:

For the application like chat and game, node’s event loop take care of the multi-user requirement. Websocket is very powerful so two-way communication is fully realtime.For example socket.io

Streaming of data:

By old approach, I/O operations are done by HTTP request and response. Node.js is very good to handle I/O. People can get benefit of transferring any kind of file like audio file, video file etc. Node is able to read/write streams in websocket same as HTTP.

So, The overall result is

o   Developement is fast,

o   Developers are happy,

o   Cost is very low,

o   Soution very quicky (Large community)