about_hashes

*hashes can be created using {}
*no keys will equal nil 
*use fetch when hash is too big and you want
 to find specific key
*unable to answer reasoning - ask in class
 # Bonus Question: Why was "expected" broken out  
 into a variable
 # rather than used as a literal?
*order does not matter in bases using keys
*hash are apart of array class
*you can search for both keys and values using
 .include method
*combining bases will replace designated symbols
*you can set a default value for hash but also
 chose which one you want to be different
*using brackets in hash will set all keys to same 
 values, which can increase because your just    
 adding to array
*inserting a block for default value will let you 
 have separate values to each array(value) /  
 symbol



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