tsconfig.types.json

//https://github.com/microsoft/TypeScript-Babel-Starter/blob/master/tsconfig.json
//https://www.typescriptlang.org/docs/handbook/compiler-options.html
//https://github.com/babel/babel/issues/9668#issuecomment-474628509
{
  "compilerOptions": {
    // Target latest version of ECMAScript.
    "target": "esnext",
    // Search under node_modules for non-relative imports.
    "moduleResolution": "node",
    // Process & infer types from .js files.
    "allowJs": false,
    // Don't emit; allow Babel to transform files.
    "noEmit": false,
    // Enable strictest settings like strictNullChecks & noImplicitAny.
    "strict": true,
    // Disallow features that require cross-file information for emit.
    "isolatedModules": false,
    // Import non-ES modules as default imports.
    "esModuleInterop": true,
    // allow jsx syntax
    "jsx": "preserve",
    "declaration": true,
    "declarationMap": true,
    "emitDeclarationOnly": true,
    "declarationDir": "lib/"
  },
  "include": ["src/**/*"]
}