What
exactly is Node.js?
Node
JS is a JavaScript runtime environment. What does this mean? It basically means
that everything that a user requires to execute in a program written in
JavaScript is part of Node run-time environment. Node.js was direct outcome of
urge of original developers of JavaScript to transform JavaScript from
something that could only run in the browser to something that could run on user’s
machine as a standalone application. Now much more can be done with JavaScript
than just making websites interactive. JavaScript has now become able enough to
do things that other scripting languages such as Python can do.
Why
Node.js
·
Non-blocking event driven I/O model
that Node.js uses makes it efficient and extremely light weight.
·
Largest ecosystem of open source
libraries ‘npm’ is package ecosystem of Node.js.
Non-blocking
I/O vs. Blocking I/O
I/O
is short form of input/output. It can be reading/writing local files or HTTP
request made to an API. I/O often blocks other functions as it takes time. Why
non-blocking I/O is better can be understood through an illustration. Let us
assume request is made from a backend database for details of user A and user B
and then print them on the screen, response comes but quite belatedly. It is
very much possible to deal with both of the user data requests at the same time
independently when employing non-blocking method.
Blocking I/O
In
the blocking method, user B’s data request will be initiated only after user
A’s data is printed to the screen. A new thread for every new user will have to
be started if this operation is performed on web server. Now JavaScript is
single-threaded with single-threaded event loop, so, it will be rendered
unsuitable for such multi-threaded operations. This is where non-blocking I/O
comes in handy.
Non-blocking I/O
When
user opts for non-blocking method, seamless initiation of a data request for
user B without waiting for response to the data request for user A is possible.
Both requests can be initiated parallelly. Non-blocking I/O completely eliminates
the need for multi-threading as the server is capable of handling multiple
requests simultaneously.
Node.js
training
Many
options are available for Node.js training in Noida. Ignited wings is one such
option. This institute is very well connected to all parts of Delhi and NCR
through road and metro. It is located at walking distance from Noida sector-59
and Noida sector-62 metro stations. Today this institute leads the pack of
institutes in contention for best
Node JS training institute in Noida tag and is perfect for anybody who wants to
pursue Node JS training in Noida.
Ignited
wings is best place for Node.js training in Delhi/NCR. There are certain
reasons for that. This institute has maintained 100% placement record for last
many years by ensuring placement of all trainees of all batches via persistent
approach to placement coupled with constant course updation practice. This
institute is easily accessible from across Delhi/NCR as it is located close to
Noida sector-59 metro station. Classes are held every day including Sundays
between 9am and 6pm. Online training is also available.
Thanks & Regards
Ignited Wings
A-50,
Sector-64, Noida, Delhi NCR, India
For
Enquiry:
0120
- 4242223 , 0120 - 4242224
For
Support:
+91-9717292598
, +91-9717292599 +91-9717292601 , +91-9717292602
+91-9717294445
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