Wraps Node.js' native fs.exists so callback is called with (err, result) instead of just (result).
Since it's just wrapping fs.exists, the err argument will always be null.

I developed the module to have a function that can be easily adapted to return a promise (for example with faithful.adapt from my Faithful project), but you may find other uses for it.

fsExists = require('fs-exists')
fsExists(path, function(err, result) {
  if (err) throw err; // err will always be null
  if(result)
    console.log "the entry exists"
  else
    console.log "the entry does not exist"
})

fs-exists is released under the MIT License.
Copyright (c) 2013 Meryn Stol