Ruby convert array to nested hash

Question

I have the following:

value = 42   array = ["this","is","a","test"] 

how can I convert that to get this

{ "this" => { "is" => { "a" => { "test" => 42 } } } } 

the array is always flat.

Thank you!

Answer 1

Try this:

array.reverse.inject(value) { |assigned_value, key| { key => assigned_value } } #=> {"this"=>{"is"=>{"a"=>{"test"=>42}}}}