How to say OR in C#.

I have some code and i want it to say that i can jump if im in two states. I mainly use JS so im a newb at C#. I want it to say that I can jump when in "locoState" (locomotion so i am moving) and in "idleState" (when im in idle) As you can see in my script below that its only for "locoState" and i want to include idle. Hope i made my question clear and Thanks in Advance!

 if (currentBaseState.nameHash == locoState)
         {
             if(Input.GetButtonDown("Jump"))
             {
                 anim.SetBool("Jump", true);
             }
         }