The F-35B is capable of vertical takeoff:

https://www.youtube.com/watch?v=zW28Mb1YvwY

Lockheed Martin says of the video: "An F-35B test aircraft completes its first-ever vertical takeoff (VTO) at NAS Patuxent River, Md., on May 10, 2013. While not a capability used in combat, VTOs are required for repositioning of the STOVL in environments where a jet could not perform a short takeoff. In these cases, the jet, with a limited amount of fuel, would execute a VTO to travel a short distance."

This is not a combat functionality and would never be used in actual combat environment. F-35 is explicitly not a VTOL aircraft any more than a baseball is.

So you agree with Lockheed Martin. Super.