Mapped Types & Key Remapping (as)

interface Konfigurasi {
  tema: string;
  autoSave: boolean;
  durasiSync: number;
}

// Mengubah semua properti menjadi fungsi getter: { getTema: () => string, ... }
type Getters<T> = {
  [K in keyof T as `get${Capitalize<string & K>}`]: () => T[K];
};

type KonfigurasiGetters = Getters<Konfigurasi>;
// Hasil: { getTema: () => string; getAutoSave: () => boolean; getDurasiSync: () => number; }