perl - why do they want to save a hash in an array? -

I saw a very strange piece of code in my Perl script used in the project, this is something like this:

  $ arrayRef = [A = & gt; {AA = & gt; 11, AAA = & gt; 111}, b = & gt; {BB = & gt; 11, BBB = & gt; 111},];   
 IMO, it tries to create an anonymous array from a hash table. I try to print the array element and here I get it:  
  foreach (@ $ arrayRef) {print; Print "\ n"; } AHSH (0x1e60220) BHSH (0x1e71bd0)   
 which means that it considers every element (key and value) as a separate element in the unknown array in the hash table. Although I am really confused why they want to save a hash in an array. The  only  benefit for me is to save some memory if the hash table is really big enough is it a useless used Pearl trick?  
 Thank you!   
 
 
 
 It tries to create an anonymous array from a hash table   
 No, it creates an unknown array from the four-element  list .  
  A => {AA = & gt; 11, AAA = & gt; 111}, b = & gt; {BB = & gt; 11, BBB = & gt; 111}   
 The exact same is  
  'a', {aA = & gt; 11, AAA = & gt; 111}, 'B', BB = & gt; 11, BBB = & gt;   
 
  = & gt; Using  indicates some kind of relationship, so I think they can use it  
  {A => {AA = & gt; 11, AAA = & gt; 111}, b = & gt; {BB = & gt; 11, BBB = & gt; 111}}   
 or  
  [[A = & gt; {AA = & gt; 11, AAA = & gt; 111}], [b = & gt; {BB = & gt; 11, BBB = & gt; 111}]   
 Or any of the other million other data structures, but it is a way to find out why any of the choices you have given have been selected.