How to create multiple copies of a list

Questions
1

I’m a newbie and am trying to make multiple copies of a list. For example, if I have the list {1,2,3}, I’d like to do something like

2*{{1,2,3}}

and get

{{1,2,3},{1,2,3}}

I’m looking for functionality similar to this in python:

>>> 2*[[1,2,3]]
[[1, 2, 3], [1, 2, 3]]

Thanks!

2

ConstantArray should do the trick, and not just for lists but for any expression.

ConstantArray[{1, 2, 3}, 2]

(* Out: {{1, 2, 3}, {1, 2, 3}} *)

http://reference.wolfram.com/mathematica/ref/ConstantArray.html

3

Thank you!