LookupSet - API reference

Set-like collection keyed by a derived lookup key.

add preserves the first inserted representative for a logical key. get returns that representative for callers that need stable identity.

See

readonly [iterator]: () => IterableIterator<K>;

Iterable.[iterator]

readonly add: (key: K) => LookupSet<K>;

readonly clear: () => void;

readonly delete: (key: K) => boolean;

readonly entries: () => IterableIterator<readonly [K, K]>;

readonly forEach: (callback: (value: K, key: K, set: LookupSet<K>) => void) => void;

readonly get: (key: K) => K | undefined;

readonly has: (key: K) => boolean;

readonly keys: () => IterableIterator<K>;

readonly size: number;

readonly values: () => IterableIterator<K>;