Optional Chaining for Assignments Lands in Stage 1

Finding existing community .cursor/rules for TypeScript lacking, I'm sharing my own set to hopefully kickstart a discussion on what makes effective AI coding guidance. These rules focus purely on TypeScript language features, documentation, structure (like Result types), teaching the AI specific nuances (like noUncheckedIndexedAccess), and practical habits, rather than specific frameworks. I also distinguish between shareable, project-specific Workspace Rules (versioned in Git) and personalized Global Rules (living in your IDE) to tailor the AI to your individual style and workflow. You can download my current ruleset using the link in the original post.

Here's a quick .cursor/rules addition you can make for handling return types in TypeScript.

# Return Types

When declaring functions on the top-level of a module,
declare their return types. This will help future AI
assistants understand the function's purpose.

```ts
const myFunc = (): string => {
  return "hello";
};
```

One exception to this is components which return JSX.
No need to

TypeScript announced a full rewrite of TypeScript in Go. In testing, this rewrite has achieved a 10x speedup in some repositories - and up to 15x in others.

TypeScript 5.8's new erasableSyntaxOnly flag enforces pure type annotations by disabling enums, namespaces, and parameter properties.

TypeScript is coming to Node 23. Let's break down what that means.

Learn how to extract the type of an array element in TypeScript using the powerful Array[number] trick.