const {
  cartesianProduct,
  cartesianProductGenerator,
} = require('../lib/product');

const productAttributes = [
  ['SM', 'MD', 'LG'],
  ['Red', 'Green'],
  ['Cotton', 'Polyester'],
];

const result = cartesianProductGenerator(...productAttributes);
const last = [...result].slice(-1)[0];

console.log(last);
/* 
[
  [ 'SM', 'Red', 'Cotton' ],
  [ 'SM', 'Red', 'Polyester' ],
  [ 'SM', 'Green', 'Cotton' ],
  [ 'SM', 'Green', 'Polyester' ],
  [ 'MD', 'Red', 'Cotton' ],
  [ 'MD', 'Red', 'Polyester' ],
  [ 'MD', 'Green', 'Cotton' ],
  [ 'MD', 'Green', 'Polyester' ],
  [ 'LG', 'Red', 'Cotton' ],
  [ 'LG', 'Red', 'Polyester' ],
  [ 'LG', 'Green', 'Cotton' ],
  [ 'LG', 'Green', 'Polyester' ]
]
*/