Dot notation to arrays

Question

I got a string

'tileBlock.tag.title'

and an object like this:

[

  "title"=>"headline",

  "body"=>"body text",

  "link"=>"#",

  "tileBlock"=>{"title"=>"Home", "tag"=>{"title"=>"home", "id"=>45}, "active"=>true}

]

Is there a way to transform

'tileBlock.tag.title'

to something like

'object[:tileBlock][:tag][:title]

?

Answer 1

You can use Enumerable#inject, take str="tileBlock.tag.title".

str.split(".").inject(object) { |m, x| m[x] }

Dot notation to arrays

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