tsconfig.json

{
  "include": ["ts-prototype"],
  "exclude": ["**/node_modules"],
  "compilerOptions": {
    // For default values, see here:
    // https://www.typescriptlang.org/docs/handbook/compiler-options.html

    "lib": ["ES2019"],

    "module": "commonjs",

    /* This is needed for TypeScript References to work; a useful tool */
    "composite": true,

    /* We always want .d.ts files to be emitted for external packages re-using types */
    "declaration": true,

    /* We also want .d.ts.map files so Jump To Source in VS Code works */
    "declarationMap": true,

    /* It is frustrating navigating a codebase with inconsistent file names */
    "forceConsistentCasingInFileNames": true,

    /* As a default, we like to build modules for bleeding-edge compatible outputs */
    // "module": "esnext",

    /* Node module resolution is the more recent version */
    "moduleResolution": "node",

    /* This is useful for detecting potentially buggy code */
    "noImplicitReturns": true,

    /* There is very rarely any reason to keep comments in emitted code */
    "removeComments": true,

    /* We often reference small-medium sized .json files in our source code */
    "resolveJsonModule": true,

    /* Having source maps is incredibly useful when developing */
    "sourceMap": true,

    /* TypeScript offers many benefits, we should benefit from them and not drop down into JS */
    "strict": true,

    /* We like using bleeding-edge language features */
    "target": "ES2019",
    "esModuleInterop": true
  }
}