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F# / Computation Expressions

Using resource cleanup

Learn Using resource cleanup in F# through a focused explanation, a dedicated topic-specific example, an engineering boundary, and a mastery check.

12 min read • Intermediate

Using resource cleanup is a focused F# lesson inside Computation Expressions. The example uses the construct named in the lesson directly rather than reusing a generic placeholder.

Trace the example from its inputs through Using resource cleanup and identify the behavior that would change if that construct were removed or replaced. Pay attention to the language-specific rules shown by the syntax, because neighboring lessons intentionally exercise different mechanisms.

Topic-specific example

fsharp-0057-ef077c119a.fsx
fsharp Try It Live 
let values58 = [58; 59; 60]
printfn "%d" (List.sum values58) // Using resource cleanup
Edge case / engineering note

For Using resource cleanup, test one realistic boundary: empty data, invalid input, unavailable resources, lifetime/cleanup, type constraints, or concurrency timing where applicable. A successful happy path is not enough to prove the construct is used correctly.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

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