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sample.fsx
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sample.fsx
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let validateAge (input: int) =
if input = 21
then Ok 21
else Error ["Invalid Age"]
let validateHeight (input: float) =
if input = 180.
then Ok 180.
else Error ["Invalid Height"]
let validateName (input: string) =
if input = "Alice"
then Ok "Alice"
else Error ["Invalid Name"]
type Data = {
Age: int
Height: float
Name: string
NotValidated: string
}
let validate (data: Data) =
validation {
validate age in validateAge data.Age
validate height in validateHeight data.Height
validate name in validateName data.Name
return {
data with
Age = age
Height = height
Name = name
}
}
validate {
Age = 20
Height = 181.
Name = "Alice"
NotValidated = "hello"
}