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F#·Practice drills 3

Drill 11: Compare — Discriminated unions

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Intermediate 5 min read Lesson 59 of 150 Challenge included
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Practice task

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unions.fsxFSHARP
type Result =
    | Ok of string
    | Error of string

let render result =
    match result with
    | Ok value -> value
    | Error message -> message

printfn "%s" (render (Ok "ready"))
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Next: Drill 11: Teach it — Small program
Lesson 59 of 150 · 0% of course