What's coming to JavaScript

Deno is a JavaScript company, and we believe JavaScript should be simple, powerful, and fun. Deno aims to modernize JavaScript and its tooling, with native TypeScript support, and bridging the gap between server-side and browser JavaScript with web standard APIs.

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Introducing Roast: Structured AI Workflows Made Easy

This past year, we started exploring how AI agents could boost developer productivity. In thinking about big developer problems such as flaky tests or lack of test coverage, we found immediate opportunities in grading and optimizing unit tests at scale, with minimal human intervention.

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How Staff+ Engineers Can Develop Strategic Thinking

Key Takeaways Strategic thinking is more than just a skill - it’s a mindset. It’s about creating the framework to drive your organization’s long-term success by continuously adapting to new challenges, fostering innovation, and sharpening this muscle over time.

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The State of React and the Community in 2025

Detailed thoughts on how React has been developed over time, and explanations for common community confusion and concerns Introduction 🔗︎ Today, the state of React and its ecosystem is complicated and fractured, with a mixture of successes, skepticism, and contention.

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`document.currentScript` is more useful than I thought.

Every so often, I stumble across a well-established JavaScript API in the browser that I probably should've known about years ago. Examples include the window.screen property and the CSS.supports() method. To my relief, I've realized I'm not always alone in my ignorance.

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How does Kafka know what was the last message it processed? Deep dive into Offset Tracking

Let’s say it’s Friday. Not party Friday, but Black Friday. You’re working on a busy e-commerce system that handles thousands of orders per minute. Suddenly, the service responsible for billing processing crashes. Until it recovers, new orders are piling up.

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Connect any React application to an MCP server in three lines of code

You can deploy a remote Model Context Protocol (MCP) server on Cloudflare in just one-click. Don’t believe us? Click the button below. This will get you started with a remote MCP server that supports the latest MCP standards and is the reason why thousands of remote MCP servers have been deployed on Cloudflare, including ones from companies like Atlassian, Linear, PayPal, and more.

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