Node.js Basics for Grade 12

Express.js

• Web framework for Node.js

• A database management system

• A front-end JavaScript library

• A CSS framework

Node.js

• JavaScript runtime environment

• Python framework

• Java application server

• C++ library

Middleware

• Functions in request pipeline

• Data storage solutions

• User interface components

• Network security protocols

Callback

• Function called after task

• Function that runs before a task

• Function that runs in parallel with a task

• Function that handles errors

OS Module

• Operating system info

• Network configuration

• File management system

• User authentication details

V8 Engine

• A high-performance JavaScript engine developed by Google

• A type of internal combustion engine

• A software for video editing

• A programming language for web development

Promise

• Handles async operations

• A type of contract

• A legal obligation

• A guarantee of success

CommonJS

• Module system in Node.js

• A type of JavaScript framework

• A database management system

• A CSS preprocessor

Error Handling

• Manage runtime errors

• Ignore all errors

• Log errors for future reference

• Automatically fix errors

Non-blocking I/O

• Synchronous operations

• Asynchronous operations

• Blocking operations

• Sequential operations