last modified file date in node.js

Question

I'm trying to retrieve the last modified date of a file on the server using node.js.

I've tried

file.lastModified; 

and

file.lastModifiedDate; 

both come back as undefined.

Answer 1

You should use the stat function :

According to the documentation :

fs.stat(path, [callback]) 

Asynchronous stat(2). The callback gets two arguments (err, stats) where stats is a fs.Stats object. It looks like this:

{ dev: 2049 , ino: 305352 , mode: 16877 , nlink: 12 , uid: 1000 , gid: 1000 , rdev: 0 , size: 4096 , blksize: 4096 , blocks: 8 , atime: '2009-06-29T11:11:55Z' , mtime: '2009-06-29T11:11:40Z' , ctime: '2009-06-29T11:11:40Z'  } 

As you can see, the mtime is the last modified time.