File System data - json

Question

So i'm starting to make a little widget that watches your filesystem for changes and I'm using npm's watch module, but a lot of the data is kind of obscured and I was hoping that someone could give me a good description of each of the parameters that are being returned by the module i'm using since there isn't much documentation about it.
{
"dev": 16777223,
"mode": 33204,
"nlink": 1,
"uid": 501,
"gid": 20,
"rdev": 0,
"blksize": 4096,
"ino": 23354217,
"size": 4038,
"blocks": 8,
"atime": "2014-11-05T09:08:32.000Z",
"mtime": "2014-11-05T09:08:51.000Z",
"ctime": "2014-11-05T06:52:48.000Z",
"birthtime": "2014-11-05T06:52:47.000Z"
}

Answer 1

{
"dev": 16777223, //The device number containing the file.
"mode": 33204, //The mode of the file. This is an integer which incorporates file type information and file permission bits. See also stat:type and stat:perms below.
"nlink": 1, //The number of hard links to the file.
"uid": 501, //The user ID of the file’s owner.
"gid": 20, //The group ID of the file.
"rdev": 0, //Device ID; this entry is defined only for character or block special files.
"blksize": 4096, //The optimal block size for reading or writing the file, in bytes.
"ino": 23354217, //The file serial number, which distinguishes this file from all other files on the same device.
"size": 4038, //The size of a regular file in bytes.
"blocks": 8, //The amount of disk space that the file occupies measured in units of 512 byte blocks.
"atime": "2014-11-05T09:08:32.000Z", //The last access time for the file.
"mtime": "2014-11-05T09:08:51.000Z", //The last modification time for the file.
"ctime": "2014-11-05T06:52:48.000Z", //The last modification time for the attributes of the file.
"birthtime": "2014-11-05T06:52:47.000Z" //The date where the file was created
}
Hope it helps!