# LazyCollection The LazyCollection class is a variant of the CMS Collection that is only initialized with keys for each collection element or without any data. Collection elements and their values (= objects) are loaded and initialized lazily when they are first used. **** - Full class name: `Kirby\Cms\LazyCollection` - Source: **** ### LazyCollection - [$lazyCollection->__call()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__call.md) - [new LazyCollection()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__construct.md) - [$lazyCollection->__debugInfo()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__debug-info.md) - [$lazyCollection->__get()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__get.md) - [$lazyCollection->__isset()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__isset.md) - [$lazyCollection->__set()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__set.md) - [$lazyCollection->__toString()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__to-string.md) - [$lazyCollection->__unset()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/__unset.md) - [$lazyCollection->add()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/add.md) - [$lazyCollection->append()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/append.md) - [$lazyCollection->chunk()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/chunk.md) - [$lazyCollection->clone()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/clone.md) - [$lazyCollection->count()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/count.md) - [$lazyCollection->current()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/current.md) - [$lazyCollection->data()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/data.md) - [$lazyCollection->empty()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/empty.md) - [$lazyCollection->extend()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/extend.md) - [$lazyCollection->filter()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/filter.md) - [$lazyCollection->filterBy()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/filter-by.md) - [$lazyCollection->find()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/find.md) - [$lazyCollection->findBy()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/find-by.md) - [$lazyCollection->findByKey()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/find-by-key.md) - [$lazyCollection->first()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/first.md) - [$lazyCollection->flip()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/flip.md) - [$lazyCollection->get()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/get.md) - [$lazyCollection->getAttribute()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/get-attribute.md) - [$lazyCollection->getIterator()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/get-iterator.md) - [$lazyCollection->getMethod()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/get-method.md) - [$lazyCollection->group()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/group.md) - [$lazyCollection->groupBy()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/group-by.md) - [$lazyCollection->has()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/has.md) - [$lazyCollection->hasMethod()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/has-method.md) - [$lazyCollection->hydrate()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/hydrate.md) - [$lazyCollection->indexOf()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/index-of.md) - [$lazyCollection->initialize()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/initialize.md) - [$lazyCollection->intersection()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/intersection.md) - [$lazyCollection->intersects()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/intersects.md) - [$lazyCollection->isEmpty()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/is-empty.md) - [$lazyCollection->isEven()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/is-even.md) - [$lazyCollection->isNotEmpty()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/is-not-empty.md) - [$lazyCollection->isOdd()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/is-odd.md) - [$lazyCollection->join()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/join.md) - [$lazyCollection->key()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/key.md) - [$lazyCollection->keyOf()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/key-of.md) - [$lazyCollection->keys()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/keys.md) - [$lazyCollection->last()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/last.md) - [$lazyCollection->limit()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/limit.md) - [$lazyCollection->map()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/map.md) - [$lazyCollection->next()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/next.md) - [$lazyCollection->not()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/not.md) - [$lazyCollection->nth()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/nth.md) - [$lazyCollection->offset()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/offset.md) - [$lazyCollection->paginate()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/paginate.md) - [$lazyCollection->pagination()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/pagination.md) - [$lazyCollection->parent()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/parent.md) - [$lazyCollection->pluck()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/pluck.md) - [$lazyCollection->prepend()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/prepend.md) - [$lazyCollection->prev()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/prev.md) - [$lazyCollection->query()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/query.md) - [$lazyCollection->random()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/random.md) - [$lazyCollection->remove()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/remove.md) - [$lazyCollection->rewind()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/rewind.md) - [$lazyCollection->search()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/search.md) - [$lazyCollection->set()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/set.md) - [$lazyCollection->shuffle()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/shuffle.md) - [$lazyCollection->slice()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/slice.md) - [$lazyCollection->sort()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/sort.md) - [LazyCollection::sortArgs()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/sort-args.md) - [$lazyCollection->sortBy()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/sort-by.md) - [$lazyCollection->toArray()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/to-array.md) - [$lazyCollection->toJson()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/to-json.md) - [$lazyCollection->toString()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/to-string.md) - [$lazyCollection->update()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/update.md) - [$lazyCollection->valid()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/valid.md) - [$lazyCollection->values()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/values.md) - [$lazyCollection->when()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/when.md) - [$lazyCollection->without()](https://getkirby.com/docs/reference/objects/cms/lazy-collection/without.md)