>From docs:
Filename Argument
>
> 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.
>
> fs.watch('somedir', function (event, filename) {
> console.log('event is: ' + event);
> if (filename) {
> console.log('filename provided: ' + filename);
> } else {
> console.log('filename not provided');
> }
> });
>
There are 2 available events: rename and change. When a file/dir is deleted
a rename event is emitted and the filename is null. This is the only case
where the filename parameter is null. With other operations the filename
seems that is always provided.
My question is:
The example from the docs doesn't show if the filename can be null because
the underlying mechanism is not reliable and sometimes the filename is
provided and sometimes is null, or it can be null depending on the event
and the operation.
For example, when a file is modified, a change event and the filename are
returned. Can I rely on the filename or it can be null even in change
events?
Thanks
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