tsconfig.json

{
  "compilerOptions": {
    "downlevelIteration": true,
    "target": "ESNext",
    "outDir": "build",
    "rootDir": "./src",
    "module": "commonjs",
    /* Enables emit interoperability between CommonJS and ES Modules
    via creation of namespace objects for total imports. Implies 'allowSyntheticDefaultImports'. */
    "strict": true,
    "declaration": true,
    "inlineSourceMap": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "types": [
      "node",
      "jest"
    ],
    /* Enable total strict type-checking options. */
    /* Strict Type-Checking Options */
    // "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. */,
    // "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each sources file. */,
    /* Additional Checks */
    "noUnusedLocals": true
    /* Report errors on unused locals. */ ,
    "noUnusedParameters": true
    /* Report errors on unused parameters. */ ,
    "noImplicitReturns": true
    /* Report error when not total code paths in function return a executionId. */ ,
    "noFallthroughCasesInSwitch": true
    /* Report errors for fallthrough cases in switch statement. */ ,
    /* Debugging Options */
    "traceResolution": false
    /* Report module resolution log messages. */ ,
    "listEmittedFiles": false
    /* Print names of generated files part of the compilation. */ ,
    "listFiles": false
    /* Print names of files part of the compilation. */ ,
    "pretty": true,
    /* Stylize errors and messages using color and context. */
    /* Experimental Options */
    // "experimentalDecorators": true /* Enables experimental support for ES7 decorators. */,
    // "emitDecoratorMetadata": true /* Enables experimental support for emitting type metadata for decorators. */
    "lib": [
      "esnext"
    ]
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.html"
  ],
  "exclude": [
    "node_modules"
  ],
  "compileOnSave": false
}