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  • How to remove nil elements from an array in Rails

    @taranjeet.singh
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    We can remove nil elements from an array in number of ways. Here i am demonstrating the frequently used methods for removing nil elements from an array.

    1> using present method with reject

    1. >> [ "a", nil, "b", nil, "c", nil ].reject {|e| !e.present?}
    2. => ["a", "b", "c"]

    2> using compact method

    1. >> [ "a", nil, "b", nil, "c", nil ].compact
    2. => ["a", "b", "c"]

    3> using blank method with reject

    1. >> [ "a", nil, "b", nil, "c", nil ].reject {|e| e.blank?}
    2. => ["a", "b", "c"]

    4> using present method with select

    1. >> [ "a", nil, "b", nil, "c", nil ].select {|e| e.present?}
    2. => ["a", "b", "c"]
    compact array rails remove nil elements from array .present? .blank? .reject .select
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