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POCoding Practice for F#
 

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    <p>I have been dabbling with F# in Visual Studio 2010. I am a developer with more code/architecture design experience in object-oriented languages such as C# and Java. </p> <p>To expand my skill set and help make better decisions I am trying different languages to do different things. In particular get the hang of coding "correctly" using functional languages (in this case F#).</p> <p>A simple example is generating some XML, then adding some filters to eliminate some elements.</p> <p>Here is my code:</p> <pre><code>open System open System.Xml.Linq let ppl:(string * string) list = [ ("1", "Jerry"); ("2", "Max"); ("3", "Andrew"); ] /// Generates a Person XML Element, given a tuple. let createPerson (id:string, name:string) = new XElement(XName.Get("Person"), new XAttribute(XName.Get("ID"), id), new XElement(XName.Get("Name"), name) ) /// Filter People by having odd ID's let oddFilter = fun (id:string, name:string) -&gt; (System.Int32.Parse(id) % 2).Equals(1) /// Open filter which will return all people let allFilter = fun (id:string, name:string) -&gt; true /// Generates a People XML Element. let createPeople filter = new XElement(XName.Get("People"), ppl |&gt; List.filter(filter) |&gt; List.map createPerson ) /// First XML Object let XmlA = createPeople oddFilter /// Second XML Object let XmlB = createPeople allFilter printf "%A\n\n%A" XmlA XmlB /// Waits for a keypress let pauseKey = fun () -&gt; System.Console.ReadKey() |&gt; ignore pauseKey() </code></pre> <p>My questions are: What things have I done well in this scenario? What parts could be done better? </p> <p>I am really looking forward to some ideas and I am quite excited about becoming familiar with functional paradigms too! :)</p> <p>Thanks in advance</p>
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    1. CO+1 In the exact same situation here (but with different code obviously) be good to see the answer to this.
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    2. COF# is made basically so that it figures type for you, it has a very strong inference engine, so you should get used to omit type annotation and make you functions as generic as you can
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    3. CO@martain_net, thanks for the tip, that makes a lot of sense actually :) I think I have overused the type definition to understand the different native F# types (eg (string * string) list means list of tuples with 2 strings ).
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