TypeScript

TypeScript on Spinini

Spinini supports TypeScript for both Node.js backends and React frontends. The TypeScript template comes pre-configured so you can start writing typed code immediately.

Getting started

Select the TypeScript template. It includes:

•tsconfig.json with sensible defaults

•ts-node for running .ts files directly

•@types/node for Node.js type definitions

Running TypeScript files

npx ts-node src/index.ts
# or
npm run dev  # uses ts-node-dev for watch mode

Building to JavaScript

npx tsc
node dist/index.js

tsconfig.json

A minimal config for Node.js:

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "commonjs",
    "outDir": "dist",
    "rootDir": "src",
    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true
  },
  "include": ["src/**/*"]
}

Type-checking

The editor runs the TypeScript language server, so type errors appear inline as you type — no need to run tsc to find them.

Adding type packages

npm install -D @types/express @types/cors

With React

Use .tsx extensions and install @types/react. Both the Vite + React and Next.js templates ship with TypeScript pre-configured.