PERL JOIN OPERATOR
REVISED: Sunday, March 3, 2013
You will learn how to use the Perl join operator.
I. PERL JOIN OPERATOR INTRODUCTION
The syntax form of Perl join operator is as follows:
$string = join (EXPR, LIST);
The join operator has two parameters:
EXPR may be any string and it represents a separator for the element of the list or array.
LIST represents a list or array whose elements will be merged into a string.
The join operator will return a string that contains the elements of the array or list, connected through a string separator.
my @perlFunc = ("Mary","had","a","little","lamb.");
my $perlFunc = join " ", @perlFunc;
print "Perl Functions: $perlFunc\n";
Output: Mary had a little lamb.
We used the space separator " " to glue the elements of the @perlFunc array. You can omit the parentheses when you call the Perl join operator.
$string = join (EXPR, LIST);
The join operator has two parameters:
EXPR may be any string and it represents a separator for the element of the list or array.
LIST represents a list or array whose elements will be merged into a string.
The join operator will return a string that contains the elements of the array or list, connected through a string separator.
II. PERL JOIN OPERATOR EXAMPLE
The following example demonstrates the use of the join operator:
#initialize an arraymy @perlFunc = ("Mary","had","a","little","lamb.");
my $perlFunc = join " ", @perlFunc;
print "Perl Functions: $perlFunc\n";
Output: Mary had a little lamb.
We used the space separator " " to glue the elements of the @perlFunc array. You can omit the parentheses when you call the Perl join operator.
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