tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "rootDir": "./",
    "sourceMap": true,
    "declaration": false,
    "downlevelIteration": true,
    "experimentalDecorators": true,
    "module": "esnext",
    "moduleResolution": "node",

    "alwaysStrict": true,
    "noImplicitAny": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "strictFunctionTypes": true,
    "noFallthroughCasesInSwitch": true,
    "strictNullChecks": false,

    "importHelpers": true,
    "target": "es2015",
    "resolveJsonModule": true,
    "typeRoots": ["node_modules/@types"],
    "lib": ["es2018", "dom"]
  },
  "exclude": ["**/node_modules/**", "dist/**"],
  "angularCompilerOptions": {
    "fullTemplateTypeCheck": true,
    "strictInjectionParameters": true,
    "strictTemplates": false
  }
}