Recent snippets
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Weighted Average
Takes a list of (quantity/amount and price/rate) as decimals, and gives a weighted average
0 people like this
Like the snippet!Posted: 3 days ago by Tuomas Hietanen
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Creating Azure dashboard clock component with Farmer
Example of shaping an anonymous-object-as-JSON structure for an Azure dashboard using strong typing and minimal code using Farmer F# https://compositionalit.github.io/farmer/
0 people like this
Like the snippet!Posted: 3 days ago by Tuomas Hietanen
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Functional Agent
A functional wrapper around MailboxProcessor that simplifies agent-based concurrency, adds error handling via events, and provides convenience functions to avoid common pitfalls when working with asynchronous message processing in F#.
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Like the snippet!Posted: 1 month ago by halcwb
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Timestamp with timezone (YYYYMMDDhhmmssffff+zzzz)
Timestamp: Time format in ISO 8601 with timezone. YYYYMMDDhhmmssffff+zzzz For example 2011-05-17 19:01:10.000 -0200 would be: 20110517190110000-0200
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Like the snippet!Posted: 3 months ago by Tuomas Hietanen
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Hangman
Word guessing game using ASCII art.
3 people like this
Like the snippet!Posted: 3 months ago by Phillip Trelford
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Random-key-generator and Base-58-encoding
Generate random hex-string and calculate base58encode. I made these for some initial BTC-testing, but didn't test too much... seems to work, but would need some unit-tests... :-) Feel free to update or add new versions.
2 people like this
Like the snippet!Posted: 4 months ago by Tuomas Hietanen
Popular snippets
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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.
74 people like this
Like the snippet!Posted: 14 years ago by Tomas Petricek
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Minimal XML DSL
This snippet provides a very small internal DSL for creating and querying XML using the underlying XLinq classes.
374 people like this
Like the snippet!Posted: 14 years ago by Blake Coverett
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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
Like the snippet!Posted: 14 years ago by Tomas Petricek
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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
57 people like thissignature. 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.
Like the snippet!Posted: 14 years ago by Ryan Riley
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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
Like the snippet!Posted: 14 years ago by Novox
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A beautiful fixed-point finding function
We start with an initial value and then applying f repeatedly, until the value does not change anymore.
302 people like this
Like the snippet!Posted: 14 years ago by Nick Palladinos
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Snippets by authors
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