What is Node.js?
"Node.js" is a
server-side platform built on the Google Chrome JavaScript Engine (V8 engine).
Node.js was established by Ryan Dahl in 2009 and its newest edition is
v0.10.36. The significance of Node.js as provided in its official documents is
as follows:
Node.js is a
platform that relies on Chrome's JavaScript runtime to quickly and easily
develop network applications. Node.js uses the unguarded I / O model, wh0 ich
is controlled by events, making it light and efficient, ideal for real-time,
intensive applications for data on distributed machines.
Node.js is
an open source and cross platform implementation platform for server and
network application development. Node.js applications are written in JavaScript
Coding Node.js also provides a comprehensive library that includes many
JavaScript modules that simplify development of network applications using
Node.js to a large extent.
Node.js =
Run-time environment + JavaScript library
Features Of Node.js
Here are
some important features that make Node.js the first choice for software
engineers.
Asynchronous and controlled: All APIs in the Node.js library are
not synchronized, and this is non-blocking. This basically means that a server
based on Node.js never expects the API to return the data. The server goes to
the following API after it is contacted and the Node.js event notification
mechanism helps the server get a response from the previous API call.
Very fast: The Node.js library is built on the Google
Chrome V8 engine, which is very fast in code execution.
Scalable: Node.js uses one thread model with
an event loop. Event mechanism helps the server to react in a non-blocking mode
and makes the server highly scalable compared to traditional servers that
generate limited transaction strings to handle requirements. Node.js uses a
single interconnected program and the same program can serve a much larger
number of requests than traditional servers such as the Apache HTTP server.
No Buffering: Node.js Using applications never
buffer data. These applications simply emit the data in pieces.
Licensing:
Node.js is established under the MIT License.
Who uses Node.js?
Below is the
link in github wiki, which contains a comprehensive list of projects,
applications and companies that use Node.js. This list includes eBay, General
Electric, GoDaddy, Microsoft, PayPal, Uber, Wikipins, Yahoo! And Yammer, to
name a few.
Projects,
applications and companies that use the contract
Concepts
The
following chart shows some important parts of Node.js that we will analyze in
detail in the following chapters.
Where to use Node.js?
Here are the
Location where Node.js shows itself as a perfect technology partner.
I / O
related applications
Data
transfer applications
Data
Intensive Real-time Applications (DIRT)
Applications
based on the JSON API
Applications
from one page
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