unzip_.unzip(array) The opposite of zip. Given an array

iteratee_.iteratee(value, [context]) Generates a callback that can be applied to each element in a collection. _.iteratee

mapObject_.mapObject(object, iteratee, [context]) Like map

sortBy_.sortBy(list, iteratee, [context]) Returns a (stably) sorted copy of list, ranked in ascending order by the results

sortedIndex_.sortedIndex(list, value, [iteratee], [context]) Uses a binary search to determine the index at which the value

isElement_.isElement(object) Returns true if object is a DOM element.

delay_.delay(function, wait, *arguments) Much like setTimeout, invokes function after wait milliseconds. If

last_.last(array, [n]) Returns the last element of an array. Passing n will return the last n elements of the

shuffle_.shuffle(list) Returns a shuffled copy of the list, using a version of the

keys_.keys(object) Retrieve all the names of the object's own enumerable properties.