tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "module": "es2020",
    "target": "es2018",
    "lib": ["es2017", "dom"],
    "moduleResolution": "node",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,

    // enable, once we use typescript 4.4.4
    // "exactOptionalPropertyTypes": true,
    // "noImplicitOverride": true,

    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    // checked by eslint
    //"noUnusedLocals": true
    "noPropertyAccessFromIndexSignature": true,
    "noUncheckedIndexedAccess": true,
    "noUnusedParameters": true,
    "strict": true,

    // covered by eslint unused-imports/no-unused-vars, unused-imports/no-unused-imports but does not interfer with
    // development, i.e. one can leave unused imports and clean it up by running npm run lint
    "noUnusedLocals": false,

    "esModuleInterop": true,
    "importHelpers": true,
    "experimentalDecorators": true,
    "typeRoots": ["node_modules/@types"],
    "types": ["hammerjs"],
    "allowJs": true,
    "checkJs": true,
    "resolveJsonModule": true
  },
  "angularCompilerOptions": {
    "enableI18nLegacyMessageIdFormat": false,
    "fullTemplateTypeCheck": true,
    "strictInjectionParameters": true,
    "strictInputAccessModifiers": true,
    "strictTemplates": true
  }
}