Hi, Adam3,
Being a bit more basic. Unlike an autoloading pistol, ejection in a revolver is purely manual. You eject the cartridges in whatever way the revolver requires from its design.
Most modern double action revolvers have a swing-out cylinder; when the cylinder is unlatched and swung to the side, pushing the ejector rod extracts/ejects all the cartridges, loaded or empty, in the cylinder. You can eject them into your hand, a box, the shooting bench, or the ground, depending in part on the situation and whether you want to reload the cases.
Solid frame single action revolvers of the Colt and Ruger types have a cylinder that can be removed but is normally left in place for reloading. A loading gate is opened and the cylinder is turned manually until each chamber in turn lines up with an ejector rod that lies under the barrel. Pushing back that rod ejects one case, again loaded or unloaded. Then the cylinder is manually turned to the next chamber. In most revolvers of that type loaded rounds, and sometimes even empty cases, will fall out when the loading gate is opened and the cylinder turned with the gun pointed upward.
Break top revolvers (single or double action) eject all their cases at once when the latch is pushed/pulled/lifted (there are variations) and the gun is "broken" at the pivot point. Most break top revolvers are obsolete, but many are still around and there have been some reproductions of collectible ones.
HTH
Jim