Modern Type Checking (No Build Step)

Configure projects for type safety without a compilation step (tsc/build) by leveraging JSDoc for browser code and Erasable Syntax for Node.js.

Core Philosophy

• Browser (Client-side): Use pure .js files with JSDoc annotations. This ensures the code runs directly in the browser while maintaining full IDE type support and error checking.
• Node.js (Server-side/Tooling): Use .ts files with Erasable Syntax. This allows Node.js (v24.11.0+) to execute TypeScript files directly without a build step, provided they don't use non-erasable features like enums or namespaces.

Configuration Standards

Apply these settings to enable seamless type checking.

1. package.json

Ensure the project is an ES Module and specifies a modern Node.js version.