tsconfig.json

{
  "compilerOptions": {
    /* for manifest/index.js */
    "allowJs": true,
    "target": "es5",
    /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
    "module": "esnext",
    /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "jsx": "react",
    "lib": [
      "dom",
      "dom.iterable",
      "esnext"
    ],
    "removeComments": true,
    /* Do not emit comments to output. */
    "noEmit": false,
    /* Do not emit outputs. */
    "noEmitOnError": true,
    "esModuleInterop": true,
    "isolatedModules": true,
    /* Strict Type-Checking Options */
    "strict": true,
    "noFallthroughCasesInSwitch": true,
    /* Report errors for fallthrough cases in switch statement. */

    /* Additional Checks */
    "allowSyntheticDefaultImports": true,
    "noUnusedParameters": true,
    /* Report errors on unused parameters. */
    "noImplicitReturns": true,
    /* Report error when not all code paths in function return a value. */
    "useDefineForClassFields": true,
    "forceConsistentCasingInFileNames": true,
    "skipLibCheck": true,
    /* Module Resolution Options */
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "declaration": false,
    "pretty": true,
    "newLine": "lf",
    "stripInternal": true,
    "noUnusedLocals": true,
    "useUnknownInCatchVariables": false,
    "baseUrl": ".",
    "paths":{
      "@/*": ["./src/*"]
    }
  },
  "include": [
    "src/**/*",
    "src/manifest/index.js"
  ],
  "exclude": [
    "node_modules"
  ],
  "files": [
    "typings/index.d.ts"
  ]
}