►Pyret
▼3 Builtins and Libraries
3.1 Global Utilities
3.2 Numbers
3.3 Strings
3.4 Booleans
3.5 Raw  Array
3.6 Tables
3.7 lists
3.8 sets
3.9 arrays
3.10 string-dict
3.11 option
3.12 pick
3.13 either
3.14 srcloc
3.15 pprint
3.16 s-exp
3.17 s-exp-structs
3.18 image-structs
3.19 image
3.20 world
3.21 reactors
3.22 plot
►3.12 pick
On this page:
3.12.1 The Pick Datatype
Pick
pick-none
pick-some
is-pick-none
is-pick-some
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3.12 pick

Usage:
include pick
import pick as ...

3.12.1 The Pick Datatype

data Pick<a,b>:
| pick-none
| pick-some(elt :: a, rest :: b)
end

pick-none :: Pick<a, b>
pick-some :: (elt :: a, rest :: b) -> Pick<a, b>
is-pick-none :: (val :: Any) -> Boolean
is-pick-some :: (val :: Any) -> Boolean
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