tsconfig.json

{
  "compilerOptions": {
    "target": "esnext",
    "module": "commonjs",
    "esModuleInterop": true,
    "moduleResolution": "node",
    "importHelpers": true,
    "resolveJsonModule": true,

    "strict": true /* Enable all strict type-checking options. */,
    "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
    "strictNullChecks": true /* Enable strict null checks. */,
    "strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
    "noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
    "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,
    "skipLibCheck": true,
    "verbatimModuleSyntax": false,
    "pretty": true,
    "jsx": "react",

    /* Additional Checks */
    "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. */,
    "noUncheckedIndexedAccess": true /* Include 'undefined' in index signature results */,
    "allowUnreachableCode": false
  },
  "exclude": ["dist", "node_modules"]
}