Remove duplicate elements from array in Ruby

Remove duplicate elements from array in Ruby

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how to permit an array with strong parameters

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How to determine if one array contains all elements of another array

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Uniq by object attribute in Ruby

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Rails mapping array of hashes onto single hash

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Rails not decoding JSON from jQuery correctly (array becoming a hash with integer keys)

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rails - Finding intersections between multiple arrays

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Ruby on Rails: Submitting an array in a form

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Sort array returned by ActiveRecord by date (or any other column)

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How do I convert an array of strings into a comma-separated string?

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Rails 3. How to get the difference between two arrays?

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Passing an array into hidden_field ROR

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Storing arrays in database : JSON vs. serialized array

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How to search an array in Ruby?

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Ruby find and return objects in an array based on an attribute

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