tsconfig.json

{
  "compilerOptions": {
    "target": "ES5", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
    "lib": [
      "ESNext",
      "DOM"
    ], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
    "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */
    "module": "ESNext", /* Specify what module code is generated. */
    "moduleResolution": "node", /* Specify how TypeScript looks up a file from a given module specifier. */
    "baseUrl": ".", /* Specify the base directory to resolve non-relative module names. */
    "sourceMap": true, /* Create source map files for emitted JavaScript files. */
    "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */
    "esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
    "strict": true, /* Enable all strict type-checking options. */
    "skipLibCheck": true, /* Skip type checking all .d.ts files. */
    "importHelpers": true,
    "noEmitHelpers": true,
    "allowJs": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "resolveJsonModule": true
  },
  "include": [
    "./src/**/*"
  ],
  "exclude": [
    "node_modules"
  ]
}