module.flushCompileCache()

将当前 Node.js 实例中已加载模块产生的 模块编译缓存 刷新到磁盘。无论文件系统操作是否成功完成，本操作都会在所有刷新操作完成后返回。如果有任何错误，该操作将默默失败，因为编译缓存未命中不应影响应用的实际运行。

【Flush the module compile cache accumulated from modules already loaded in the current Node.js instance to disk. This returns after all the flushing file system operations come to an end, no matter they succeed or not. If there are any errors, this will fail silently, since compile cache misses should not interfere with the actual operation of the application.】