tsconfig.json

{
  "compilerOptions": {
    "allowJs": true,
    "baseUrl": "./",
    "esModuleInterop": true,
    "incremental": true,
    "inlineSourceMap": true,
    "inlineSources": true,
    "module": "commonjs",
    "noErrorTruncation": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "preserveWatchOutput": true,
    "removeComments": true,
    "resolveJsonModule": true,
    "rootDirs": ["src", "test"],
    "skipLibCheck": true,
    "strict": true,
    "strictFunctionTypes": true,
    "strictNullChecks": true,
    "strictPropertyInitialization": true,
    "target": "ESNEXT",

    "lib": [
      "ES5",
      "ES2015",
      "ES2016",
      "ES2017",
      "ES2018",
      "ES2019",
      "ES2020",
      "dom"
    ],

    "outDir": "./dist"
  },
  "exclude": ["dist", "test", "node_modules", "coverage", "jest.config.js"]
}