tsconfig.json

{
  "compilerOptions": {
    "module": "esnext",
    "target": "es2015",
    "strict": true,
    "alwaysStrict": true,
    "outDir": "./build",
    "declaration": true,
    "declarationDir": "./build",
    "sourceMap": true,
    "noImplicitAny": false,
    "noImplicitReturns": true,
    "jsx": "preserve",
    "importHelpers": true,
    "moduleResolution": "node",
    "experimentalDecorators": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strictPropertyInitialization": false,
    "noStrictGenericChecks": true,
    "baseUrl": ".",
    "paths": {
      "@/*": [
        "src/*"
      ]
    },
    "lib": [
      "esnext",
      "dom",
      "dom.iterable",
      "scripthost"
    ]

  },
  "include": [
    "./src/**/*"
  ],
  "exclude": [
    "node_modules",
    "build",
    "config",
    "scripts",
    "acceptance-tests",
    "./src/**/__mocks__/",
    "./src/**/__tests__/",
    "./src/**/*.spec.ts",
    "./src/**/*.test.ts"
  ]
}