tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "target": "es2015",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
    "module": "es2015",                          /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "allowJs": true,                             /* Allow javascript files to be compiled. */
    "jsx": "react",                              /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
    "sourceMap": true,                           /* Generates corresponding '.map' file. */
    "outDir": "build",                           /* Redirect output structure to the directory. */
    "rootDir": "src",                            /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
    "skipLibCheck": true,
    /* 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. */
    /* Module Resolution Options */
    "moduleResolution": "node",                    /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    "baseUrl": "./",
    "paths": {
      "components/*": [
        "./src/*"
      ]
    },
    "types": ["node"],                             /* Type declaration files to be included in compilation. */
    "esModuleInterop": true,                       /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    /* Experimental Options */
    "experimentalDecorators": true,                /* Enables experimental support for ES7 decorators. */
    "emitDecoratorMetadata": true,                 /* Enables experimental support for emitting type metadata for decorators. */
  },
  "exclude": [
    "node_modules",
    "index.js",
    "build",
    "__tests__",
    "babel.config.js",
    "rn-cli.config.js",
  ],
  "compileOnSave": false,
}