Question

How to use nested upto loop in Ruby

Answer 1

1.upto(3) do |i|
    # from 1 to 1 * 2
    # from 2 to 2 * 2
    # from 3 to 3 * 2
    i.upto(i * 2) do |j|
        print j, " "
    end
    
    print "\n"

end



# run:
# 
# 1 2 
# 2 3 4 
# 3 4 5 6 

 

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