writer.endSync()

• 返回：<number> 总共写入的字节数，如果结束无法同步完成，则为 -1。

writer.end() 的同步版本。返回值 -1 仅表示操作无法同步完成；不能对关闭是否已开始或为什么无法完成做任何假设。使用尝试-回退模式来等待完成：

🌐 Synchronous variant of writer.end(). A return value of -1 only indicates that the operation could not complete synchronously; no assumption can be made about whether closing has started or why it could not complete. Use the try-fallback pattern to await completion:

const result = writer.endSync();
if (result < 0) {
  writer.end();
} 拷贝