partition

lastIndexOf

sample

wherecollection.where(attributes) Return an array of all the models in a collection that match the passed attributes. Useful

groupBy

setcollection.set(models, [options]) The set method performs a "smart" update of the collection with the passed list of models

reduceRight (foldr)

indexOf

getcollection.get(id) Get a model from a collection, specified by an

every (all)