The infamous $_
In fact, that gets shorter. And now I need to introduce you to $_
, which is the Default Input and Pattern Searching Variable.
foreach (@names) {
print "$_";
}
If you don't specify a variable to put each element into, $_ is used instead as it is
the default for this operation, and many, many others in Perl. Including the print function :
foreach (@names) {
print ;
}
As we haven't supplied any arguments to print , $_ is printed as default. You'll be seeing
a lot of $_ in Perl. Actually, that statement is not exactly true. You will be seeing lot
of places where $_ is used, but quite often when it is used, it is not actually written.
In the above example, you don't actually see $_ but you know it is there.
