Creating a variable length string of whitespaces in Mathematica

Question

The following Mathematica function f creates a string of whitespace of length n.

f[n_]:=Fold[StringJoin,"",Array[" "&,n]]

There must be a zillion alternatives to create this function.

How would you have done it?

Answer 1

f[n_] := StringJoin @ ConstantArray[" ", n]

Edit: since @ is as idiomatic as @@ and a bit faster (thanks to Mr.Wizard for benchmarking) and shorter i updated the solution.

Answer 2

f[n_] := FromCharacterCode[ConstantArray[32, {n}]]

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