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muuki88/KeyValueStore.v3.ts

Created September 14, 2018 08:21
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KeyValue Storage
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KeyValueStore.v3.ts
type KeyValueStorage = {
'setting1': boolean;
'setting2': string;
'setting3': number;
};
/** all possible keys for the key-value storage */
type KeyValueStorageKey = keyof KeyValueStorage;
interface UserStorage {
/** set a value for a specific key */
set<T extends KeyValueStorageKey>(key: T, value: KeyValueStorage[T]): void;
/** get the value for a specific key. If not present return null*/
get<T extends KeyValueStorageKey>(key: T): KeyValueStorage[T] | null;
}
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