Method truncateSync

lib/internal/vfs/file_system.js:464–473

* Truncates a file synchronously. * @param {string} filePath The file path * @param {number} [len] The new length

(filePath, len = 0)

   * @param {number} [len] The new length
   */
  truncateSync(filePath, len = 0) {
    if (len < 0) len = 0;
    const providerPath = this.#toProviderPath(filePath);
    const handle = this[kProvider].openSync(providerPath, 'r+');
    try {
      handle.truncateSync(len);
    } finally {
      handle.closeSync();
    }
  }

  /**
   * Truncates a file descriptor synchronously.