Question

I have a hash h1, and key k1. I need to return complete key value pair for the given key in the hash.

Like for key ‘fish’
i need to print ‘fish’ => ‘aquatic animal’

@h1, prints all the key value pairs.I need the way to print the key value pair for thr given key

I am quite new to ruby, so sorry for the noobish question.

Answer 1

There is a method, Hash#assoc can do similar things. But it returns the key and value in an array, which you can easily change it into a hash.
And an alternative is use Hash#select, which does return a hash according to the block given.

h1 = { "fish" => "aquatic animal", "tiger" => "big cat" }
h1.assoc "fish"                       # ["fish", "aquatic animal"]
h1.select { |k,v| k == "fish" }       # {"fish"=>"aquatic animal"}