tsconfig.json

{
    "compilerOptions": {
		"baseUrl": ".",
		"paths": { "*": ["types/*"] },
      "target": "ES2015",
      "lib": ["dom", "es2015"],
      "module": "ES2015",
      "esModuleInterop": true,
      "pretty": true,
      "strict": true,
      "noImplicitAny": true,
      "noImplicitReturns": true,
      "noImplicitThis": true,
      "noUnusedLocals": true,
      "noUnusedParameters": true,
      "alwaysStrict": true,
      "diagnostics": true,
      "listFiles": true,
      "listEmittedFiles": true,
      "strictNullChecks": true,
      "strictFunctionTypes": true,
      "removeComments": true,
      "preserveConstEnums": true,
      "experimentalDecorators": true,
      "emitDecoratorMetadata": true,
      "noFallthroughCasesInSwitch": true,
      "sourceMap": true,
      "allowSyntheticDefaultImports": true
    },
    "include": ["src/**/*.ts"]
  }