Function getThing

src/common/definable.ts:80–80

(id: Id)

  const getTableId = (id: Id): Id => mapGet(tableIds, id) as Id;

  const getThing = (id: Id): Thing | undefined => mapGet(things, id);

  const setThing = (id: Id, thing: Thing | undefined): IdMap<Thing> =>
    mapSet(things, id, thing) as IdMap<Thing>;