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  • Active pattern for let binding inside patterns

    The Let active pattern demonstrated by this snippet can be used to assign values to symbols in pattern matching. This is useful for writing complex pattern matching using match as we can handle multiple cases using a single clause.

    64 people like this

    Posted: 15 years ago by Tomas Petricek

  • Filtering lists

    Two functions showing how to filter functional lists using the specified predicate. First version uses naive recursion and the second one is tail-recursive using the accumulator parameter.

    77 people like this

    Posted: 15 years ago by Tomas Petricek

  • 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.

    100 people like this

    Posted: 15 years ago by Neil Carrier

  • 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

  • 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

  • Load XAML

    This example shows how to load a Xaml file allowing to use WPF from F#. It also shows how to access WPF objects and register event handlers.

    109 people like this

    Posted: 15 years ago by Antonio Cisternino

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