tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "target": "es5",
    /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
    "module": "commonjs",
    /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "lib": [
      /* Specify library files to be included in the compilation:  */
      "esnext",
      "dom",
      "es2016",
      "es2017"
    ],
    "jsx": "react" /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */,
    "declaration": true /* Generates corresponding '.d.ts' file. */,
    "sourceMap": true,
    /* Generates corresponding '.map' file. */
    "outDir": "./dist/",
    /* Strict Type-Checking Options */
    "strict": true,
    /* Enable all strict type-checking options. */
    "noImplicitAny": true,
    /* Raise error on expressions and declarations with an implied 'any' type. */
    // "strictNullChecks": true /* Enable strict null checks. */,
    /* Additional Checks */
    "forceConsistentCasingInFileNames": true,
    "noImplicitReturns": true,
    "noImplicitThis": true,
    "suppressImplicitAnyIndexErrors": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    /* Module Resolution Options */
    "moduleResolution": "node"
  },
  "include": ["./src"],
  "exclude": ["node_modules", "build"]
}