Question

How do you make an inverse hash from an existing hash (swap the keys/value pairs)?

Select one:

a. revise(%original_hash);

b. %swapped_hash = reverse(%original_hash);

c. my %swapped_hash = inverse %original_hash;

d. my %swapped_hash = reverse %original_hash;

Answer 1

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Question_01. How do you make an inverse hash from an existing hash (swap the keys/value pairs)?
Answer =>
     Hash Explanation:
     Hash is a set of key/value pairs. "reverse" to create an inverted hash or to swap the keys/value pairs. 
     Hash variables are preceded by a percent(%) sign.
     Example : %data = ( "Jack" => "John", "Ram" => "Kumar" );

     The syntax for inversing a give HASH is as below:
     # %ORIGINAL_HASH maps keys to values :  
       %NEWORIGINAL_HASH  = reverse %ORIGINAL_HASH ;



     So the answer is: Option B; 

     => %swapped_hash = reverse(%original_hash);