�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` # `sum()` The sum method returns the sum of all items in the collection: ```js collect([1, 2, 3]).sum(); // 6 ``` If the collection contains nested arrays or objects, you should pass a key to use for determining which values to sum: ```js const collection = collect([ { name: 'My story', pages: 176 }, { name: 'Fantastic Beasts and Where to Find Them', pages: 1096 }, ]); collection.sum('pages'); // 1272 ``` In addition, you may pass your own callback to determine which values of the collection to sum: ```js const collection = collect([ { name: 'Desk', colors: ['Black', 'Mahogany'] }, { name: 'Chair', colors: ['Black'] }, { name: 'Bookcase', colors: ['Red', 'Beige', 'Brown'] }, ]); const total = collection.sum(product => product.colors.length); // 6 ``` [View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/sum.js)