How do I make a laser go in the direction that the player is looking?

I'm trying to make a laser that goes in the direction the player is looking

for i = 1,25 do

		ball.Position = ball.Position + Vector3.new(0,0,0) --laser projectile,its this part i need to in the direction of the player is looking 

(i just tryed with vector3 doing this, but I realized that it did not work out)

		mash.Scale = mash.Scale + Vector3.new(0,0,2) --laser mesh
		ball.Transparency = ball.Transparency + 0.1

		
		
		wait(0.0001)

end

Just use character.HumanoidRootPart.CFrame.LookVector * (the power you want).