tsconfig.json

// This is a tsconfig.json intended to be used by packages in this monorepo.
{
  // We extend the base IsaacScript config:
  // https://github.com/IsaacScript/isaacscript/blob/main/packages/isaacscript-tsconfig/configs/tsconfig.base.json
  "extends": "isaacscript-tsconfig/tsconfig.base.json",

  // https://www.typescriptlang.org/docs/handbook/compiler-options.html
  "compilerOptions": {
    "rootDir": ".",
    "baseUrl": ".",

    // Performance optimization; see: https://www.npmjs.com/package/tslib
    "importHelpers": true,

    // "target" specifies the ECMAScript target version. By default, it is "ES3". This is too
    // conservative; the project targets browsers / Node.js within a 2 year time-frame.
    "target": "ES2021",

    // "resolveJsonModule" is required to import files with ".json" extensions. By default, it is
    // false.
    "resolveJsonModule": true,

    // Specifying "Node" is necessary in order for JSON files to be imported without erroring.
    "moduleResolution": "Node",

    "paths": {
      "@hanabi/data": ["./packages/data/src/index.ts"],
      "@hanabi/game": ["./packages/game/src/index.ts"],
    },
  },
}