FlatMap Explanation

[Ashish Soni]

Hi ,

Can some one please explain the output of the flat map
data in RDD as below
{1, 2, 3, 3}

rdd.flatMap(x => x.to(3))

output as below

{1, 2, 3, 2, 3, 3, 3}
i am not able to understand how the output came as above.

Thanks,