Using a dot to find a named value
A dot can select a named value, such as the score in a player map. It can also select an exported name from an imported module.
For an identifier-shaped text key, member access is exact map-key shorthand:
player.score
set player.score = 10
These are equivalent to:
player["score"]
set player["score"] = 10
Member names are case-sensitive user data. They are never translated. Member
access does not expose host objects, methods, or properties on other value
types.