Recent snippets
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Pong
Pong video game runnable inside fable.io. Controls are "A" for left, and "D" for right.
1 people like this
Like the snippet!Posted: 1 month ago by Phillip Trelford
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Using local LLMs from F#
Download and install Ollama: https://ollama.com/ Ollama is a free common host for multiple different LLM-models like Google Gemma, OpenApi's GPT-OSS, Deepseek, etc.
0 people like this
Like the snippet!Posted: 3 months ago by Tuomas Hietanen
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ModelContextProtocol with FSharp (MCP with F#)
ModelContextProtocol with FSharp (MCP with F#) https://modelcontextprotocol.io/docs/getting-started/intro Client and Server examples using https://github.com/modelcontextprotocol/csharp-sdk
0 people like this
Like the snippet!Posted: 3 months ago by Tuomas Hietanen
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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: 4 months 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/
2 people like this
Like the snippet!Posted: 4 months 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#.
2 people like this
Like the snippet!Posted: 5 months ago by halcwb
Popular snippets
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Adapter pattern
Invoke the methods from incompatible types
110 people like this
Like the snippet!Posted: 14 years ago by Tao Liu
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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
Like the snippet!Posted: 15 years ago by Neil Carrier
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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
Like the snippet!Posted: 14 years ago by Tao Liu
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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: 15 years ago by Novox
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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
Like the snippet!Posted: 15 years ago by Tomas Petricek
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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: 15 years ago by Tomas Petricek
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Snippets by authors
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Database contains 3208 snippets out of which 1719 is public.