ruby generate random number
rand()#that will give you a random float between 0 and 10
rand(num)#that will give you a random integer between 0 and the number num
rand(first...second)#that will give you a random
#integer between first and second
ruby generate random number
rand()#that will give you a random float between 0 and 10
rand(num)#that will give you a random integer between 0 and the number num
rand(first...second)#that will give you a random
#integer between first and second
generate 6 digit random number ruby
10.times.map{rand(10)}.join # => "3401487670"
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