Writing Universal Modules for Deno, Node and the Browser

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This workshop will walk you through writing a module in TypeScript that can be consumed users of Deno, Node and the browsers. I will explain how to set up formatting, linting and testing in Deno, and then how to publish your module to deno.land/x and npm. We’ll start out with a quick introduction to what Deno is.

This workshop has been presented at Node Congress 2022, check out the latest edition of this JavaScript Conference.

FAQ

Dino is a modern runtime for JavaScript and TypeScript that is secure by default. It does not allow file system read, network access, environment variable access, or running subprocesses unless explicitly permitted. Dino supports TypeScript out-of-the-box and includes built-in utilities like a linter, formatter, and a test framework.

To install Dino, visit the official website Dino.land and follow the installation steps. Once installed, you can run Dino by using the command line interface. For example, to run a file named 'mod.js', you would use the command 'Dino run mod.js'.

Dino supports a variety of web standards including ECMAScript modules, fetch API, web workers, import maps, and web streams. Dino aims to align closely with browser APIs and web standards to ensure compatibility and performance.

Dino is secure by default, meaning it does not grant any permissions unless explicitly specified. For instance, to allow network access or file system read, you must explicitly enable these permissions when executing your Dino scripts. This model is similar to how browsers handle permissions for websites.

Dino Deploy is a cloud compute offering by Dino that is similar to edge compute services like Cloudflare Workers. It allows users to deploy their applications globally and leverage Dino's capabilities in a cloud environment.

Dino includes several built-in tools such as a linter and a formatter, both written in Rust for performance. Additionally, Dino has a simple yet powerful test framework to cover all testing needs and a set of standard libraries that encapsulate common functionalities.

Yes, Dino can run TypeScript directly out of the box without requiring any additional transpilation. This feature simplifies the development process as it eliminates the need for separate TypeScript compilation steps.

The Dino CLI project is an open-source initiative under Dino that provides a command-line interface for managing Dino installations and running Dino applications. It is a key component of the Dino ecosystem, designed to enhance developer experience and productivity.

Luca Casonato
Luca Casonato
57 min
19 Feb, 2022

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Video Summary and Transcription

Luca, a software engineer at Dinoland Inc., works on the open source Dino CLI project and the cloud compute offering called Dino deploy. They contribute to web standards work for Dino. The Workshop covers writing a utility library that works in Deno, Node, and the browser, utilizing Deno's tooling and enabling publishing to npm. It also includes topics like setting up Deno in VS Code and PowerShell, creating a JSON parse stream, testing, formatting, setting up CI pipelines, making code work in Node, transpiling, and publishing to npm. The Workshop explores automation with CI/CD and Git hooks, using Denobundle for browser compatibility, and importing from CDNs.
Video transcription and chapters available for users with access.

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