Method readFileSync

src/core/file_system.ts:237–237

* **Supplemental**: Synchronously reads the entire contents of a file. * @param encoding If non-null, the file's contents should be decoded * into a string using that encoding. Otherwise, if encoding is null, fetch * the file's contents as a Buffer.

(fname: string, encoding: string | null, flag: FileFlag)

   *   the file's contents as a Buffer.
   */
  readFileSync(fname: string, encoding: string | null, flag: FileFlag): any;
  /**
   * **Supplemental**: Asynchronously writes data to a file, replacing the file
   * if it already exists.