Deno Blog: Posts

Deno Blog

A Gentle Intro to TypeScript

Quick, digestible bites of TypeScript goodness for Deno developers. In this first bite, we introduce TypeScript, how to add type annotations to your code and why you should.

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Deno Blog

Announcing Hono on JSR

Hono, a lightweight, fast, cross-platform web framework, is now on JSR.

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How We Made the Deno Language Server Ten Times Faster

When a customer reported performance issues with the Deno language server, we began a performance investigation that resulted in reducing auto-completion times from 6-8 seconds to under one second in large codebases. This is how we did it.

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Deno Blog

How the Guardian uses Deno to audit accessibility and performance across their 2.7 million articles

The Guardian receives over 350 million unique page views. Learn how Deno helps the Guardian maximize web performance and adhere to accessibility standards to retain and grow their readership.

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Introducing More Flexible Domain Association for Deno Subhosting

This new update simplifies programmatically managing custom domains, wildcard domains, subdomains for different deployments, and more.

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The stabilization process of the Standard Library has begun

The Deno Standard Library is going to reach 1.0.0 shortly. We hope you try RC versions of the packages and give us feedback!

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Deno 1.44: Private npm registries, improved Node.js compat, and performance boosts

Deno 1.44 adds support for private npm registries, gRPC connections, improved Node.js compat with initial Next.js support, and significant performance improvements.

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How we built a secure, performant, multi-tenant cloud platform to run untrusted code

When building a modern cloud platform to securely run untrusted code, it can be difficult to balance cost and performance. Here’s how we built Deno Deploy and Deno Subhosting.

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Deno Blog

The Deno Standard Library is now available on JSR

The Deno Standard Library has moved to JSR, supporting SemVer ranges in imports and compatibility with Node.js, Cloudflare Workers, and more.

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How to document your JavaScript package

Writing good JSDocs for your JavaScript package is critical to its success. Here are some best practices for creating docs that helps your users be successful.

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Deno Blog

Your Low Code Solution Needs an Escape Hatch

A low-code solution is a simple way to offer some flexibility for your users. However, to accommodate further customization (especially for enterprise users), you should have an “escape hatch” — simple, code-level customization. Here are three product scenarios and where an escape hatch makes most sense.

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Deno Blog

Deno 1.43: Improved Language Server performance

Deno 1.43 enhances productivity with a faster language server, improved npm compatibility, a new `deno serve` subcommand, URL.parse() API, and announcements regarding Deno 2.

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How Slack used Deno to save months of engineering effort in launching their new platform

Learn how building with Deno helped Slack launch their new development platform in weeks and not months.

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JSR Is Not Another Package Manager

JSR introduces a new way to share JavaScript and TypeScript code across platforms, focusing on simplifying distribution without replacing existing package managers.

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Announcing the Hookdeck SDK on JSR

Hookdeck, an event gateway for distributed and async architecture, now has an SDK on JSR.

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Announcing the Neon Serverless Driver on JSR

Neon, a performant, edge-compatible, serverless Postgres driver, arrives on JSR.

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An intro to TSConfig for JavaScript Developers

TypeScript, one of the fastest growing languages, helps JavaScript developers improve code quality and productivity. But getting started can be challenging. Here's an introduction to TSConfig.

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How we built JSR

A modern JavaScript registry needs to be fast, reliable, and be as simple as possible for end users. Here's how we built JSR.

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How Netlify used Deno Subhosting to build a successful edge functions product

Learn why Netlify chose Deno Subhosting over building their own solution with AWS Lambda to offer a successful edge functions product within weeks.

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Introducing Simpler Project Creation in Deno Deploy

Introducing a more simplified project creation flow in Deno Deploy, including seamless CI/CD setup, a more transparent build and deployment step, and more.

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Deno 1.42: Better dependency management with JSR

Deno 1.42 revolutionizes dependency management with the seamless integration of JSR, enhancing Node/npm compatibility and introducing significant performance improvements.

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Introducing deployctl, the command line interface for Deno Deploy

Deno Deploy’s command line interface, deployctl, is the simplest way to deploy your projects to the cloud. Here’s how to do it.

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Introducing JSR - the JavaScript Registry

The JavaScript Registry (JSR) is a TypeScript-first, ESM-only module registry designed for the entire JavaScript ecosystem. Use JSR modules from Deno and npm-based projects. JSR is free and open source. Available today in public beta.

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Deno Blog

How to add Monaco to a Next.js app to enable custom user workflows

Allowing your users to create custom workflows increases your platform's value. Here's a simple guide to enable user-created workflows via a browser IDE with Monaco, Next.js, and Subhosting.

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Survey Results and Roadmap

You answered our survey and we listened. Here’s what we’re working on currently and what you can expect from Deno next.

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Deno 1.41: smaller deno compile binaries

We've roughly halved the size of `deno compile` binaries, added official Linux ARM64 builds, continued to land Node.js compatibility improvements, and more.

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Webhooks suck, but here are alternatives

Webhooks, originally proposed as a way to consume asynchronous feeds, became the one-size-fits-all solution for integrating cloud software. Here’s why we think there’s a better solution.

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Celebrating Community Contributors

Introducing TypeScript Champions (TSC), a new way to celebrate and support some of the most prolific TypeScript contributors.

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Introducing Deno Deploy onboarding tutorials

We revamped Deno Deploy’s onboarding to show you how easy it is to use Deno’s cloud primitives in your projects.

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Deno in 2023

2023 marked a significant step towards our vision of radically simplifying web development. Here are the biggest updates and what’s coming up next.

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