Method has

cache/memoize.ts:13–13

Checks whether a value for the given key exists in the cache.

(key: K)

export interface MemoizationCache<K, V> {
  /** Checks whether a value for the given key exists in the cache. */
  has(key: K): boolean;
  /** Returns the cached value associated with the given key, if present. */
  get(key: K): V | undefined;
  /** Stores a value in the cache under the given key. */