eduproj/material/fp-function.yml

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title: Functions
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type: concept
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summary: |
Functions describe a process of turning *inputs* into *outputs*.
content: |
In a purely mathematical setting, functions typically have one input and one
output, but in functional programming, we can usually get around this either
by using [tuples][1] or by [currying][2].
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[1]: page://fp-tuples
[2]: page://fp-currying
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exercises:
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- name: doubleIt
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style: gradedProgram
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description: |
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Write a function called `doubleIt` that takes an integer and doubles it.
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graders:
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ocaml:
style: studentModule
props:
interface: |
val doubleIt : int -> int
driver: |
open List
let () = List.iter
(fun x -> assert ((doubleIt x) = (x * 2)))
(List.init 100 (fun x -> x + 1));
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- name: whichIsFunction
style: multipleChoice
description: |
Which of the following can be described as a _function_?
graders:
ocaml:
style: multipleChoice
props:
foo: bar