CODEWITHSUNDEEP
arraysrubystruct
sreang rathanak
sreang rathanak

Reputation: 542

Initialize Struct from array keys

I have 

arrs = [[:key1, key2, key3, key4],[:key6, key7]]

And I want to define Struct by using those keys like this:

arrs.map do |arr|
  Struct.new(arr)
end

but it does raise an error:

TypeError: no implicit conversion of Array into String
    from (irb):26:in `new'
    from (irb):26

So, do we have any way to initialize these keys in Struct?

Upvotes: 0

Views: 282

Answers (1)

Ilya
Ilya

Reputation: 13487

Use the splat operator:

arrs = [[:key1, :key2, :key3, :key4],[:key6, :key7]]
arrs.map { |a| Struct.new(*a) }
=> [#<Class:0x007fa833e25738>, #<Class:0x007fa833e1fa18>]

Upvotes: 4

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