Why that?

Answer 1

Hashes are very useful for passing around simple data objects where it’s useful to identify items in the collection with a key.
Hash objects are also commonly used as config options or passed as the argument of a method to use as named parameters.

Answer 2

Please specify your question so that we can help you.
https://www.sololearn.com/Discuss/333866/?ref=app

Answer 3

What is your question??

Answer 4

No because!