Deno 101 For Web Developers

Welcome to Deno 101! In this comprehensive series, you will embark on a journey to learn about Deno, a modern and secure runtime built on top of Rust, designed to improve your web development skills.

Introduction to Deno

Deno is a new and innovative runtime for executing JavaScript and TypeScript outside of the browser. Its development addresses several limitations found in Node.js, offering modern features and enhanced security.

Why Choose Deno?

• Security First: Deno prevents common security vulnerabilities by default, requiring explicit permission for operations like file read/write or network access.
• Built-in Tools: Comes equipped with a package manager, a bundler, a code formatter, a test runner, and a linter, simplifying the development process.
• Compatibility: Directly supports TypeScript, reducing the need for additional compilation steps.
• No node_modules: Uses a different dependency management without the traditional node_modules directory, offering a more streamlined approach.

Getting Started with Deno

To start using Deno, you will need to install it on your system. Follow the official installation guide to get it up and running efficiently.

Installation Steps

1. Visit the official Deno website and follow the instructions specific to your operating system.
2. Verify your installation with deno --version to ensure everything is set up correctly.

Building Your First Deno Application

Once Deno is installed, you can create your first application. This section will guide you through building a basic Deno application, illustrating its core concepts and features.

Basic Deno Script

console.log('Hello, Deno world!');

This simple script demonstrates how easily you can execute JavaScript using Deno. To run this, save it in a file hello.ts and execute it with the command deno run hello.ts.

Conclusion

Deno offers modern web developers a robust and secure environment to build their applications. Through this course, you will gain insights into its powerful features and learn to leverage them in your projects effectively.