Recent snippets
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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.
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Like the snippet!Posted: 18 days 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
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Like the snippet!Posted: 18 days 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
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Like the snippet!Posted: 1 month 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/
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Like the snippet!Posted: 1 month 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: 2 months 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: 4 months ago by Tuomas Hietanen
Popular snippets
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Read only ref
F# implementation of RO_ref from the "Effective ML" talk.
92 people like this
Like the snippet!Posted: 14 years ago by fholm
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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: 14 years ago by Tomas Petricek
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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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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: 14 years ago by Alex Muscar
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Wicked way to solve quadratic equation using list of operators
This is to demonstrate that: (1) there are many ways to solve the same problems; (2) operators can be grouped together into data structures and act as data; (3) you can have fun in F# in many ways.
57 people like this
Like the snippet!Posted: 14 years ago by Dmitry Soshnikov
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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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Database contains 3206 snippets out of which 1719 is public.