node-fs-extra/docs/emptyDir.md

emptyDir(dir, [callback])

Ensures that a directory is empty. Deletes directory contents if the directory is not empty. If the directory does not exist, it is created. The directory itself is not deleted.

Alias: emptydir()

Sync: emptyDirSync(), emptydirSync()

Example:

var fs = require('fs-extra')

// assume this directory has a lot of files and folders
fs.emptyDir('/tmp/some/dir', function (err) {
  if (!err) console.log('success!')
})