deno-patterns

What problem does it solve?

Migrating from Node.js to Deno and adopting modern TypeScript patterns can be challenging; this guide provides a structured approach to resource management, async iteration, and robust error handling.

Core Features & Use Cases

• Resource management with the using pattern for deterministic cleanup of timers, file handles, and network resources.
• Async iteration and polling patterns using async generators for cancellable workflows.
• Error handling using Deno's class-based errors and structured concurrency best practices.
• Migration guidance that maps Node.js patterns to Deno equivalents and Web API usage.

Quick Start

Refactor a small Deno project to replace manual cleanup with using and convert a polling loop to an async generator and cancelable patterns.