tsconfig.json

{
  "compileOnSave": true,
  "compilerOptions": {
    "target": "esnext" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
    "lib": [
      "es6",
      "esnext",
      "dom"
    ] /* Specify a set of bundled library declaration files that describe the target runtime environment. */,
    "module": "commonjs" /* Specify what module code is generated. */,
    "rootDir": "src" /* Specify the root folder within your source files. */,
    "moduleResolution": "node" /* Specify how TypeScript looks up a file from a given module specifier. */,
    "typeRoots": [
      "node_modules/@types"
    ] /* Specify multiple folders that act like `./node_modules/@types`. */,
    "types": [
      "node"
    ] /* Specify type package names to be included without being referenced in a source file. */,
    "resolveJsonModule": true /* Enable importing .json files */,
    "sourceMap": true /* Create source map files for emitted JavaScript files. */,
    "outDir": "build" /* Specify an output folder for all emitted files. */,
    "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. */,
    "strict": true /* Enable all strict type-checking options. */,
    "skipLibCheck": true /* Skip type checking all .d.ts files. */
  },
  "include": ["src", "typings"],
  "exclude": ["node_modules", "build"]
}