Node.js - Introduction
01.What is Node.js ?
Node.js was developed by Ryan Dahl in 2009. It latest LTS version: 14.16.0 (includes npm 6.14.11) and latest current version: 15.10.0 (includes npm 7.5.3). Node.js is known as server-side platform which build on Google Chrome's JavaScript Engine (V8 Engine).
Node.js is,
- an open source sever environment
- it's free
- runs on various platforms ( Windows, Unix, Linux, Mac OS X, etc.)
- uses java script on the server
02.Why Node.js?
Node.js is primarily used for non-blocking, event-driven servers, due to its single-threaded nature. It's primarily used for traditional web sites and back-end API services, but was designed with real-time, push-based architecture in mind.
03.What Can Node.js Do?
Node.js can generate dynamic page content and it can create, open, read, write, delete, and close file on the server. Also Node.js can collect form data and can add, delete, modify data in your database.
04.Pros and Cons of Node.js
Pros
1.Scalability 2.Single Programing Language 3.High performance 4.Cross-platform development 5.Simple to learn 6.Large Community Support7.Web App development speed8.Freedom to Develop Cross Platform Apps
9.Imporve App Response Time
Cons
1. Unstable API2. Lack of Library Support3. High demand for Experienced Recourse4. Heavy Computing Task 5. Asynchronous programming Model
05. Where to Use Node.js?
Node.js is proving itself as a perfect technology partner in the following areas,- I/O bound Applications
- Data Streaming Applications
- Data Intensive Real-Time Applications (DIRT)
- Single Page Applications
05. Where to Use Node.js?
- I/O bound Applications
- Data Streaming Applications
- Data Intensive Real-Time Applications (DIRT)
- Single Page Applications
06. Where Not to Use Node.js?
It is not advisable to use Node.js for CPU intensive applications.
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