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.
1 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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NUnit Sugar
Some simple functions for writing more idiomatic F# tests with NUnit.
91 people like this
Like the snippet!Posted: 15 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: 15 years ago by Novox
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Implementing active objects with a MailboxProcessor
Mailbox processors can easily be used to implement active objects. This example shows how to do that with a reusable wrapper type and minimal boilerplate code in the actual class definitions. Supports both asynchronous calls and synchronous calls. For the latter case, exceptions are automatically propagated back to the caller.
92 people like this
Like the snippet!Posted: 14 years ago by Wolfgang Meyer
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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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ObservableObject
The ObservableObject type implements the INotifyPropertyChanged interface used in WPF and Silverlight to notify on changes to properties that are bound to a control. Specify property names type safely using F# Quotations, i.e. <@ this.PropertyName @> when invoking the NotifyPropertyChanged method. If you are following the MVVM pattern then your View Model class can inherit from the ObservableObject type.
67 people like this
Like the snippet!Posted: 14 years ago by Phillip Trelford
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Association list lookup
While prototyping programs I find myself using association lists. This little snippet defines a lookup functions for association lists defined as lists of tuples.
68 people like this
Like the snippet!Posted: 15 years ago by Alex Muscar
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Snippets by authors
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