export default class Collections { /** * The singletonList(T) method is used to return an immutable list containing only the specified object. */ static singletonList(item) { return [item]; } /** * The min(Collection, Comparator) method is used to return the minimum element of the given collection, according to the order induced by the specified comparator. */ static min(collection, comparator) { return collection.sort(comparator)[0]; } }