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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.

    74 people like this

    Posted: 15 years ago by Rick Minerich

  • 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.

    84 people like this

    Posted: 15 years ago by Dmitri Pavlenkov

  • Composing a list of functions

    Composition of functions in F# is easily achieved by using the >> operator. You can also chain an arbitary amount of functions (represented as a list or sequence) together by folding the list/seq with >>. [More formally: the set of endomorphisms 'a -> 'a forms a monoid with the binary, associative operator ">>" (or "<<") and the neutral element "id".]

    87 people like this

    Posted: 15 years ago by Novox

  • WPF / SilverLight Converter II

    version 1 is http://fssnip.net/62. This new version support convert from any existing function to a converter function by using composition and pipeline. The convert function is to make the function signature agree to the IValueConverter interface. You can add new functions in the FunctionLibrary module and reuse the class definition to reduce the coding effort. The first sample is to show how to make the converter pipeline work, the second one is a debugger converter used to debug the data binding problem.

    91 people like this

    Posted: 14 years ago by Tao Liu

  • Chain of responsibility II

    Unlike the previous chain of responsibility, this version use the pipeline to chain responsibilities.

    106 people like this

    Posted: 14 years ago by Tao Liu

  • Chain of responsibility

    The following sample wants to make sure the person’s age is between 18 and 65, weight is no more than 200 and tall enough (>120).

    85 people like this

    Posted: 14 years ago by Tao Liu

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fold (22) json (16) parsing (28) lists (15) html (16) design patterns (18) sequence (32) algorithms (25) mailboxprocessor (27) silverlight (22) web (29) computation builder (17) computation expression (15) staging (18) monad (24) async (98) list (56) seq (54) generic programming (17) kata (17)

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