The single-letter variable was for the purposes of the example. The example still holds with a more descriptive name--is $results_file a filehandle or a string containing the name of a file?
More knowledge about the ambiguities of Perl is always a good thing. I don't see this practice as a replacement for knowing how things work. It just adds clarity. Braces are a nice visual cue that make a filehandle variable instantly recognizable as a filehandle.
In reply to Re^8: Split output by tabs (bogus best practice)
by ColonelPanic
in thread Split output by tabs
by perlnoobster
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |