empty_list: Construct an empty list
In michaelquinn32/lambdaList: An R Translation of Steve Losh's List Out of Lambda

Description Usage Arguments Details Value

This is a base "object" for building lists.

1	empty_list(selector)

selector

A function to return either the head, tail or empty status of a list

To quote Steve Losh, a list is a function that knows how to return its head, tail and whether it's empty. Empty lists serve an important part of this construction, since it gives us the ability to mark the "end" of our nested functions that create the list. In practice, we don't usually call the function with its argument. Instead, other functions will need to access this argument to implement various properties of lists.

A closure with the fl class added. The closure can be used to access different properties of the list: either the head, tail or its empty status.

michaelquinn32/lambdaList documentation built on May 22, 2019, 9:52 p.m.