tsconfig.json

{
  "compilerOptions": {
    "jsx": "react",
    "target": "es6",
    "module": "commonjs",
    "allowJs": true,
    "declaration": false,
    "sourceMap": true,
    "removeComments": true,
    "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
    "strictNullChecks": true /* Enable strict null checks. */,
    "strictFunctionTypes": true /* Enable strict checking of function types. */,
    "strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
    "noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
    "noUnusedLocals": true /* Report errors on unused locals. */,
    "noUnusedParameters": true /* Report errors on unused parameters. */,
    "noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
    // "strictBindCallApply": true /* Enable strict 'bind', 'call', and 'apply' methods on functions. */,
    // "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true
  },
  "include": ["packages/**/*"],
  "exclude": ["node_modules", "**/*.test.ts"]
}