What does the “yield” keyword do in Ruby?

Question

I encountered the following Ruby code:

class MyClass
    attr_accessor :items
    ...
    def each
        @items.each{|item| yield item}
    end
    ...
end         


        

Answer 1

yield tells ruby to call the block passed to the method, giving it its argument.

yield will produce an error if the method wasn't called with a block where as return statement don't produces error.

return can only send single values where as Yield return object of huge values.