Perl Array Data Structure

A Perl Array Data Structure is a Perl Data Structure that represents an Array Data Structure.

• AKA: Perl Array
• Context:
  • It can be:
    • a Perl Array of Arrays
    • a Perl Array of Hashes
• Example(s):
  • see Perl Coding Example.
• See: Perl Hash Data Structure.

References

Examples

• Populate manually
  

   my @Array1 = ( 1, 2, 3);
   my @Array2 = ("One", "Two", "Three");
   my @Array3 = qw(One Two Three);

• Populate from a file.
  

   while (<>) {
      my @tmp = split;        # Split elements into an array.
      ...
   }

• Loops
  

   for $i (@array) {
     print $i ;
   }

• Emptying
  

  @ARRAY = (); # completely empty @ARRAY
  $#ARRAY = -1 ; # reset the index
  undef @ARRAY; # forget @ARRAY ever existed