Basic prerequisites for Node JS
The basic prerequisites for getting started with Node.js are more focused on foundational skills that will help you grasp and use Node.js effectively. Here's a simplified list:
1. Basic JavaScript Knowledge
- Variables and Data Types: Understand how to declare variables (
let
,const
,var
) and work with different data types (strings, numbers, arrays, objects). - Functions: Know how to define and use functions.
- Loops and Conditionals: Be comfortable with
for
loops,while
loops, and conditional statements (if/else
,switch
). - Asynchronous Code: Basic understanding of callbacks and promises in JavaScript, which is important in Node.js for handling asynchronous operations.
2. Command Line Basics
- Navigating the Terminal: Be familiar with using the command line to run commands like navigating between directories (
cd
), listing files (ls
), and running scripts.
3. Installing Node.js
- Install Node.js on your system from the official website: https://nodejs.org. This also installs NPM (Node Package Manager), which you'll use to manage libraries and dependencies.
4. Basic Understanding of JSON
- Know how to work with JSON (JavaScript Object Notation), a common data format used in Node.js applications for API responses and data exchange.
5. Basic Knowledge of HTTP
- Familiarize yourself with how HTTP works, particularly with GET and POST requests, as you'll often work with web servers and APIs in Node.js.
6. Text Editor or IDE
- Use a good text editor like VS Code, Sublime Text, or Atom for writing and editing Node.js code.