Ruby Way of Nested If Statement

Question

Right now I have I feel like a very ugly way of setting a variable to a value depending on if it returns an empty string or not. Below is the method in question (it uses Nokogiri, but that doesn't really matter for this question).

def get_let(response)
    if response.css('A').empty?
        if response.css('B').empty?
            let = ''
        end
        let = response.css('B')
    else
        let = response.css('A')
    end

    return let
end

Answer 1

def get_let(response)
    let = response.css('A')
    let = response.css('B') if let.empty?
    let = '' if let.empty?
end