Convert array to a set: it removes duplicate elements for you : to String « Array « Ruby

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Ruby » Array » to String   Convert array to a set: it removes duplicate elements for you require 'set' survey_results = [1, 2, 7, 1, 1, 5, 2, 5, 1] p distinct_answers = survey_results.to_set # => #<Set: {5, 1, 7, 2}>   Related examples in the same category 1.  Inject a two-dimensional array to set

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