Method readFile

lib/internal/vfs/file_handle.js:590–601

* Reads the entire file. * @param {object|string} [options] Options or encoding * @returns {Promise }

(options)

   * @returns {Promise<Buffer|string>}
   */
  async readFile(options) {
    this.#checkClosed('read');
    this.#checkReadable();

    // Get content asynchronously (supports async content providers)
    const content = await this.getContentAsync();
    const encoding = typeof options === 'string' ? options : options?.encoding;
    if (encoding) {
      return content.toString(encoding);
    }
    return Buffer.from(content);
  }

  /**
   * Writes data to the file synchronously.