Dear Monks,

1. '$first' and '$second' are 2 different variables. Why is
'$_[0] . $_1' used instead of '$_[0] . $_[0]' to combine
two strings? Doesn't the first '$_' for '$first' and the
second '$_' for '$second'?

2. In this code " . $_[0] . $_1 . "\n"; I understand why there
are two dots. But I don't understand why the third dot is
there.

Thank you, 
#!/usr/bin/perl

#prompt user for two strings. Remove newline and 
#store into variables
print "\nEnter the first string: ";
chomp($first = <STDIN>);
print "\nEnter the second string: ";
chomp($second = <STDIN>);

sub combine{
print "\nThe combined strings are: " . $_[0] . $_[1] . "\n";
}

&combine($first,$second);

[download]

C:\JPARK\JPERL>sub-ex.pl
Enter the first string: I go
Enter the second string: to school.
The combined strings are: I go to school.

In reply to subroutine function by truthseeker66

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