Node v21.7.3 (Current)

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Node v18.20.2 (LTS)

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Node v20.12.2 (LTS)

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Optimizing WebKit & Safari for Speedometer 3.0

The introduction of Speedometer 3.0 is a major step forward in making the web faster for all, and allowing Web developers to make websites and web apps that were not previously possible. In this article, we explore ways the WebKit team made performance ... more

Full-stack web development with HTMX and Bun, Part 2: Pug templating

In the first half of this article, we set up a web development stack and created a simple example application using Bun, HTMX, Elysia, and MongoDB. Here, we'll continue exploring our new stack while cleaning up and abstracting the example application's ... more

How to Get a LinkedIn Profile’s Email & Phone Number Programmatically with Our B2B Enrichment API (Includes Python Demo)

Many businesses use LinkedIn for prospecting and outreach because of the massive amounts of B2B data available on it, but it can be rather challenging and expensive. On one hand, LinkedIn's native solutions like InMail messages are designed to keep you ... more

China enacts “New Regulations on Cross-Border Data Transfer”

In today’s digital age, cross-border data transfer plays a crucial role in the growth of multinational companies. China has recently enhanced its approach to data governance with the introduction of laws such as “the Cybersecurity Law,” ”the Data Security ... more

Developer Week 2024 wrap-up

Developer Week 2024 has officially come to a close. Each day last week, we shipped new products and functionality geared towards giving developers the components they need to build full-stack applications on Cloudflare. Even though Developer Week is ... more

Updating a Bar Chart in Real Time with AG Charts React

This tutorial is designed to show you how to update AG Charts in real-time (every 10ms ) as well as in response to user interaction. By the end of the tutorial, you'll have a chart that looks like this: This tutorial is focused on React , but we have ... more

How does useOptimistic() work internally in React?

How does useOptimistic() work internally in React? 44 minutes by Robin Wieruch Optimistic UI is a common trick in UI development to improve the perceived performance. useOptimistic() is a hook to help build it. Let’s figure out how it work internally. ... more

proposal-signals/proposal-signals: A proposal to add signals to JavaScript.

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Behind the Scenes of Building the Three Word Stories App

Three Word Stories lets two or more people take turns to write a story, and then it reads the story aloud. We built this simple app over about 48 hours as a part of our annual hackathon tradition, called Pointless Palooza. It’s not easy to conceive, ... more

Cloudflare acquires Baselime to expand serverless application observability capabilities

Today, we’re thrilled to announce that Cloudflare has acquired Baselime. The cloud is changing. Just a few years ago, serverless functions were revolutionary. Today, entire applications are built on serverless architectures, from compute to databases, ... more

Browser Rendering API GA, rolling out Cloudflare Snippets, SWR, and bringing Workers for Platforms to all users

This post is also available in Español. Browser Rendering API is now available to all paid Workers customers with improved session management In May 2023, we announced the open beta program for the Browser Rendering API. Browser Rendering allows developers ... more

Blazing fast development with full-stack frameworks and Cloudflare

Hello web developers! Last year we released a slew of improvements that made deploying web applications on Cloudflare much easier, and in response we’ve seen a large growth of Astro, Next.js, Nuxt, Qwik, Remix, SolidStart, SvelteKit, and other web apps ... more

We've added JavaScript-native RPC to Cloudflare Workers

Cloudflare Workers now features a built-in RPC (Remote Procedure Call) system enabling seamless Worker-to-Worker and Worker-to-Durable Object communication, with almost no boilerplate. You just define a class: export class MyService extends WorkerEntrypoint ... more

[Js-Craft #50] What is Lanchain.js and how can it help us integrate AI models into web apps

Hi there, friend! It's an anniversary edition of the Js-Craft newsletter. The 50'th edition 🎂🎉! Just checked the newsletter archive and saw that the first newsletter was sent on May 02, 2018. Almost 6 years ago 🙂 In this edition of the newsletter: ... more

JetBrains IDEs add AI-powered code autocompletion

JetBrains is add full-line code autocompletion to its family of IDEs (integrated development environments), powered by locally run AI models. Full line code complеtion is available for Java, Kotlin, Python, JavaScript, TypeScript, CSS, PHP, Go, and Ruby ... more

Tuesday, April 9, 2024 Security Releases

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New tools for production safety — Gradual deployments, Source maps, Rate Limiting, and new SDKs

This post is also available in 简体中文, 繁體中文, 日本語, 한국어, Deutsch and Español. 2024’s Developer Week is all about production readiness. On Monday. April 1, we announced that D1, Queues, Hyperdrive, and Workers Analytics Engine are ready for production scale ... more

Announcing Pages support for monorepos, wrangler.toml, database integrations and more!

Pages launched in 2021 with the goal of empowering developers to go seamlessly from idea to production. With built-in CI/CD, Preview Deployments, integration with GitHub and GitLab, and support for all the most popular JavaScript frameworks, Pages lets ... more

Full Line Code Completion in JetBrains IDEs: All You Need to Know

Programming with AI is still a highly divisive topic, but there’s no denying that more and more developers are starting to incorporate AI into their daily workflows. Whether you’ve already picked your side in the debate or are still undecided, we’ve ... more

WebStorm 2024.1: Sticky Lines, Quick Documentation Improvements, Full Line Completion, and More

Our first major release of 2024 is here! In this version, you’ll find sticky lines, quick documentation improvements, full line code completion, Vue Language Server enabled by default, a new Language Services widget, many version control improvements, ... more

How to Use Typescript with React?

Key Takeaways Writing TypeScript with React.js is a lot like writing JavaScript with React.js. The main advantage of using TypeScript is that you can provide types for your component’s props which can be used to check correctness and provide inline documentation ... more

Node v21.7.2 (Current)

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Node v18.20.1 (LTS)

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Node v20.12.1 (LTS)

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Improving Cloudflare Workers and D1 developer experience with Prisma ORM

Working with databases can be difficult. Developers face increasing data complexity and needs beyond simple create, read, update, and delete (CRUD) operations. Unfortunately, these issues also compound on themselves: developers have a harder time iterating ... more

Listening notes #4: The Rise of the AI Engineer with Shawn Wang

Artificial intelligence engineers are developers who make the tools, systems, and processes that enable artificial intelligence to be applied in the real world. An AI engineer facilitates the integration between an LLM and a traditional software app. ... more

Full-stack web development with HTMX and Bun, Part 1: Elysia and MongoDB

Bun and HTMX are two of the most interesting things happening in software right now. Bun is an incredibly fast, all-in-one server-side JavaScript platform, and HTMX is an HTML extension used to create simple, powerful interfaces. In this article, we'll ... more