tsconfig.json

// https://www.typescriptlang.org/tsconfig
{
  "compilerOptions": {
    // -- Project Options
    "declaration": true,
    "declarationMap": false,
    "incremental": false,
    "lib": [
      "ES2020" // Node 14.x
    ],
    "module": "CommonJS",
    "outDir": "build",
    "plugins": [
      {
        "name": "typescript-eslint-language-service"
      }
    ],
    "rootDir": ".",
    "sourceMap": true,
    "target": "ES2019", // Node 12.x
    // -- Strict Checks
    "strict": true,
    // -- Module Resolution
    "esModuleInterop": true,
    // -- Linter Checks
    "noImplicitReturns": true,
    // "noUnusedLocals": true,
    "noUnusedParameters": true,
    // -- Experimental
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    // -- Advanced
    "allowUnreachableCode": false,
    "forceConsistentCasingInFileNames": true,
    "newLine": "lf",
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "stripInternal": true
  },
  "include": [
    "src/**/*",
    "test/**/*"
  ]
}