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Node.js Globals

Introduction to Node.js
What is Node.js? History and Evolution of Node.js Advantages and Disadvantages of Node.js Use Cases of Node.js
Setting Up Node.js Environment
Node.js Installation Configuring Node.js NPM (Node Package Manager) Basic NPM Commands
Node.js Fundamentals
Node.js Architecture Node.js Modules Node.js Globals Node.js Callbacks EventDriven Programming Asynchronous Programming Streams and Buffers
Working with Node.js Modules
Creating and Exporting Modules Builtin Modules NPM Modules Creating a Package.json file Working with Module Dependencies Understanding Semantic Versioning
Express.js
Introduction to Express.js Setting Up Express.js HTTP Request Methods Routing in Express.js Request and Response Objects Middlewares in Express.js Handling Errors in Express.js
Working with Databases in Node.js
Introduction to Databases SQL vs NoSQL Databases Connecting to Databases in Node.js MongoDB (a NoSQL Database) Mongoose (an Object Data Modeling Library) CRUD Operations with MongoDB and Mongoose
Testing and Debugging in Node.js
Why is Testing Important? Unit Testing Integration Testing Debugging Node.js Applications Debugging with npm Debugger Debugging with Visual Studio Code
Deployment and Scaling of Node.js Applications
Deploying Node.js Applications Understanding the Different Environments Clustering in Node.js Load Balancing in Node.js Process Management in Node.js
Security in Node.js Applications
Common Security Threats Web Application Security Secure Coding Practices Authentication and Authorization Handling Passwords and Sensitive Data
Best Practices and Patterns in Node.js
Coding Best Practices Design Patterns Architectural Patterns Scalable Application Architecture Choosing the Right Tools and Techniques

Node.js Globals

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In Node.js, a global refers to a property or function that is available globally to all modules, that is, it can be accessed from any module without importing or requiring it explicitly. There are a number of built-in global variables and functions in Node.js.

Some of the most commonly used global variables in Node.js include:
  1. __dirname: This global variable provides the current directory path of the script being executed.
  1. __filename: This global variable provides the full path of the script being executed.
  1. process: This global variable provides information about the current process that is running the Node.js application.
  1. console: This is a global object that provides methods for logging information, debugging, and error messages.

Some of the commonly used global functions in Node.js include:
  1. setTimeout(): This function is used to execute a function once after a specified delay.
  1. setInterval(): This function is used to execute a function repeatedly after a specified delay.
  1. require(): This function is used to load external modules into a Node.js application.
  1. Buffer(): This function is used to create buffers, which are used to represent binary data in Node.js.

Overall, understanding these global variables and functions in Node.js can greatly enhance your ability to build powerful and efficient Node.js applications.

March 25, 2023

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