get method

V? get(K key)

Returns the value associated with key if present, and marks the entry as most recently used. Returns null if key is not found.

Implementation

V? get(K key) {
  if (!_cache.containsKey(key)) return null;

  // Remove and re-insert to update usage order.
  V value = _cache.remove(key) as V;
  _cache[key] = value;
  return value;
}