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tomaszgiba/arr_element_from_value.rb

Created June 28, 2016 14:13
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Return array element basing on a ANY value and have deterministic output.
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arr_element_from_value.rb
def arr_element_from_value(value, array)
array[(value.hash % (array.count).abs) + [0, array.count].min]
end
arr = ['#FFFFFF', '#666666', '#D8D8D8', '#333333', '#378c89']
arr_element_from_value(nil, arr) # ¯\_(ツ)_/¯
arr_element_from_value(1, arr)
arr_element_from_value(SecureRandom.hex, arr)
arr_element_from_value(1.0, arr)
arr_element_from_value(User.last, arr)
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