array-concat
Returns a new array comprised of the given array's contents with the given value appended.
arraymap
Curried function deriving new array values by applying provided function to each item/index of provided array. Fast and compatible with modern or old browsers.
inarray
Curried predicate which checks that a value exists in an array. Generally faster than `indexOf` across JS engines.
take-last
Returns a new shallow copy of the last n elements taken from the end of the given array. When list.length < n the list returned contain list.length elements.