tsconfig.json

{
  "compileOnSave": false,
  "compilerOptions": {
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "strict": true, /* Enable all strict type-checking options. */
    "noImplicitReturns": true,
    "allowUnreachableCode": false,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "suppressExcessPropertyErrors": false,
    "noImplicitThis": true,
    "noFallthroughCasesInSwitch": true,
    //"strictFunctionTypes": true,
    "suppressImplicitAnyIndexErrors": false,
    "alwaysStrict": true,
    "noImplicitAny": true,
    "strictNullChecks": true,
    "target": "es5",
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2017",
      "dom"
    ],
    "baseUrl": "src",
    "paths": {
      "@app/*": [
        "app/*"
      ],
      "@app/core/*": [
        "app/core/*"
      ],
      "@app/shared/*": [
        "app/shared/*"
      ],
      "@env/*": [
        "environments/*"
      ]
    }
  },
  "angularCompilerOptions": {
    "fullTemplateTypeCheck": true,
    "preserveWhiteSpace": false
  }
}