ruby array iteration and cheking for nil value -


i have @banners object. want iterate through each element of array , want pluck :picture_file_name. want check whether each picture_file_name nil or not. doing this

if @banners.present? , @banners.pluck(:picture_file_name) == [nil]

but not getting proper result

assuming it's "if ':picture_file_name's nil" :

if @banners.present? , @banners.pluck(:picture_file_name).all?(&:nil?)

in case checking "if ':picture_file_name's not nil" :

if @banners.present? , @banners.pluck(:picture_file_name).all?

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