Arrays and Hashes

More Array Variable Assignment

• Array Variables can be assigned collections of other scalars and array variables.
• Example:
  

  @First = (1, 2, 3); 
  @Second = (5, 6, 7); 
  @All = (@First, 4, @Second); 
  print @All; 
  ==> 1 2 3 4 5 6 7 
  

• Note that these do not become subarrays, they are all part of a single long one dimensional array.
• If a list literal contains only variables (no expressions), this literal can appear on the left side of the = operator.
• Example:
  

  @First = (1, 2, 3); 
  ($One, $Two, $Three) = @First; 
  print "One=$One, Two=$Two, Three=$Three\n"; 
  ==> "One=1, Two=2, Three=3\n"; 
  

• Any extra values on the left side of the equal operator are set to the empty list (undef).
• Any extra values on the right side of the equal operator are ignored.