Screen to view point?

Hi, this is weird question but can someone please explain ScreenToViewPoint to me?

function Update () {
    transform.position = camera.main.ScreenToViewportPoint(Input.mousePosition);

If I want to make an object move to wherever the cursor goes, how would I do that using this script?

ScreenToViewportPoint maps 0->ScreenSize to 0->1 (basically divides x by Screen.width, y by Screen.height). It's almost certainly not what you need.

I would look into either ScreenToWorldPoint or Physics.Raycast, depending on whether your game is 2D or not

I suggest using Input.mousePosition and using that in conjunction with ScreenToWorldPoint, then transform the position.