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mayra-cabrera/null_pattern_6.rb

Last active August 29, 2015 14:27
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null_pattern_6.rb
product_ids = [123,456,'',789]
products = product_ids.map{|id| Product.find(id)}
=> [#<Product:0x000123123 @name="TV"..>,
#<Product:0x000123124 @name="Cellphone"..>,
nil,
#<Product:0x000123125 @name="iPad"..>
]
puts product.nil? ? '' : product.name
puts product == nil ? '' : product.name
puts product.is_a?(NilClass) ? '' : product.name
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