Method appendFileSync

src/core/file_system.ts:745–755

(fname: string, data: any, encoding: string | null, flag: FileFlag, mode: number)

    });
  }
  public appendFileSync(fname: string, data: any, encoding: string | null, flag: FileFlag, mode: number): void {
    const fd = this.openSync(fname, flag, mode);
    try {
      if (typeof data === 'string') {
        data = Buffer.from(data, encoding!);
      }
      fd.writeSync(data, 0, data.length, null);
    } finally {
      fd.closeSync();
    }
  }
  public chmod(p: string, isLchmod: boolean, mode: number, cb: BFSOneArgCallback): void {
    cb(new ApiError(ErrorCode.ENOTSUP));
  }