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• Partition a sequence until a predicate is satiated

  This function is given a partition predicate and a sequence. Until the predicate returns false, a list will be filled with elements. When it is, both the list and the remainder of the sequence will be returned. Note that this example preserves the laziness of the unchecked sequence elements.

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  Posted: 15 years ago by Rick Minerich

• Composable WCF Web API using Async

  A functional wrapper around the new WCF Web APIs (http://wcf.codeplex.com/). Composition is achieved through the use of the HttpRequestMessage -> Async signature. Pushing the app calls in the MessageHandler intercepts all requests and allows you to take control at the earliest point possible before operation selection occurs. Extending this slightly to call the innerChannel's SendAsync would allow you to create a middleware layer that would work both with this and other, normal Web API services.

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  Posted: 15 years ago by Ryan Riley

• Continuation-Passing Mnemonics

  Continuations provide a means whereby heap space can be traded for stack depth (heap space being generally more plentiful than stack depth). They are especially useful where tail recursion is not possible. Here are a couple of simple continuation examples that can be extended to cover more complex scenarios.

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  Posted: 15 years ago by Neil Carrier

• Minimal XML DSL

  This snippet provides a very small internal DSL for creating and querying XML using the underlying XLinq classes.

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  Posted: 15 years ago by Blake Coverett

• Projecting lists

  Three functions showing how to implement projection for functional lists. First version uses naive recursion and the second one is tail-recursive using the accumulator parameter. The third version extends this with continuation passing.

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  Posted: 15 years ago by Tomas Petricek

• Split a list

  Three ways to split a list in half (but not necessarily in the middle). A forth version added that's very short and should be fast, as we only use List.fold. New champ found.

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  Posted: 15 years ago by Dmitri Pavlenkov

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