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Why can't I use dot notation to access Ruby Hash Object elements

Altcademy Team wrote on 7 February 2018

I have a ruby Hash Object retrieved from the postgresql database.
hash = {"foo": bar}
puts hash.foo
=> NoMethodError: undefined method 'foo' for {"foo": bar}:Hash
Please help!!

Ruby Hash objects do not support dot notation, that is a JavaScript feature.
To access your properties in your ruby Hash, use square brackets notation.
hash = {"foo": "bar"}
puts hash["foo"]
=> "bar"

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