tsconfig.json

{
  "compileOnSave": false,
  "include": [ "./src/**/*.ts" ],
  "exclude": [ "./node_modules/" ],
  "compilerOptions": {
      "baseUrl": "./src/",
      "outDir": "./dist/",
      "target": "es6",
      "typeRoots": [ "./node_modules/@types/" ],
      "lib": [ "esnext", "dom", "dom.iterable", "scripthost" ],
      "module": "commonjs",
      "moduleResolution": "node",
      "paths": {
          "@/*": [ "./*" ]
      },

      "sourceMap": true,
      "declaration": true,
      "emitDecoratorMetadata": true,
      "experimentalDecorators": true,
      "allowSyntheticDefaultImports": true,
      "importHelpers": true,

      "strict": true,
      "alwaysStrict": true,
      "strictNullChecks": true,
      "forceConsistentCasingInFileNames": true,
      "noUnusedLocals": true,
      "noImplicitAny": true,
      "noImplicitReturns": true,
      "noImplicitThis": true,

      "preserveWatchOutput": true,
  }
}