But we used an additional Dumper function for referencing the data structure elements so that the elements are arranged with some default orders with a pre-defined variable called “$VAR1” and also “\” by using back-slash operator, it calculates the space for each key and value pair elements. In the final example, we used the same hashing technique with array elements. Using the foreach loop, the values are iterated and stored in the new variable using the qw default keyword and print the values on the output console. In the second example, we used the basic key-value pairs technique for the variables $vars1 to $vars5. K1 => 'jasgvyt6347 hdg wjhg kjweg kwjeh kqwegw kqwhew kqwg kqwehg486 jweg9848767 kjweg984386 kewg4838 hewjreg48 hewr', Here we want to delete the key by using the delete keyword with the help of for loop the keys are iterated and displayed after the removal operations. In that, we want to add or remove the keys by using the default methods. It will declare and to store it in the hash map technique called key-value pairs. In the above example, we have declared the variable values as array format. My %vars = ( key1 => value1, key2 => value2 ….) If the key exists, it will be automatically overwritten in the memory. The array is a sequential data storage in the memory the hash type of variables is mentioned using the percent sign(%) so that it will be identified easily also, the array variables have their own prefix with the unique set of keys. The Perl script hashing is one of the processes and techniques to convert the user keys into another value with the help of the hash function, the hash value is generated.
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