member variable or new up on each update? which is faster

which is faster?

a:

function LateUpdate () { var number: float = Random.Range( 0,0.25);

}

or

b:

private var number : float;

function LateUpdate () { number = Random.Range( 0,0.25); }

THANKS!

Should be the former, but unless you're going to be using number a lot of times in that function, you're not going to notice

Becomes a little more apparent with structs, but still, very unlikely to notice