Question

fs.watch(*file*, function(event, filename){
  console.log('event ' + event);
  console.log('filename ' + filename);
});

when the file changes this is outputting:

event:  change
filename: null

Any ideas what could cause this? I’m on OSX.

Thanks!

Answer 1

From the documentation:

When watching a directory, providing filename argument in the callback
is not supported on every platform (currently it’s only supported on
Linux and Windows). Even on supported platforms filename is not always
guaranteed to be provided. Therefore, don’t assume that filename
argument is always provided in the callback, and have some fallback
logic if it is null.