The foreach loop is a control structure that's tailor made to process Perl lists and hashes. Just like the for loop, foreach steps through each element of an array using an iterator. Rather than using a scaler as that iterator (like the for loop), foreach uses the array itself.
@myNames = ('Larry', 'Curly', 'Moe');You'll see that this gives us the same output as printing the array @myNames in it's entirety:
foreach (@myNames) {
print $_;
}
LarryCurlyMoeIf all we wanted was to dump out the contents of our list, we could have just printed it. Lets use the foreach loop to make the output a bit more readable.
@myNames = ('Larry', 'Curly', 'Moe');You'll see that this creates a cleaner output by printing a newline after each item in the list.
print "Who's on the list:\n"; foreach (@myNames) {
print $_ . "\n";
}
Who's on the list:Next: A cleaner foreach loop
Larry
Curly
Moe