Creating hash from an array of values in Ruby [duplicate]

Question

I want to use each item in the array as values in a hash with the same key "name".

people = ["Bob", "Mary", "Sarah", "Tim", "Maggie"]

I want to get:

{ name: => "Bob", name: => "Mary", name: => "Sarah", name: => "Tim", name: => "Maggie"}

When I do Hash[people.map {|v| ["name", v]}] or

people.map{|v| hash['name'] = v}

it zips only the last item so I get this as a result :

{"name"=>"Maggie"}

What do you expect hash[:name] to return, in the hypothetical world where it were possible to have a key map to multiple values? — user229044
– user229044 ♦, Commented Feb 14, 2017 at 19:49

user229044 · Accepted Answer · 2017-02-14 19:48:54Z

2

This is impossible. Keys in a hash cannot be duplicated. Each key may only exist once, and map to exactly one value.

answered Feb 14, 2017 at 19:48

user229044♦

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