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Getting Started with F# Web Development

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Many of the features provided by F# lend themselves well to web development. In this talk, we will quickly go over some of the basics of the F# language, then dive into four quick ways to get started developing web application in F#. By the end, we will have built an F# and C# Silverlight application, an F# only Silverlight application, an F# and C# ASP.NET MVC 2 web application, and a web application with a platform called WebSharper.

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Getting Started with F# Web Development

  1. 1. Getting Started with F# Web Development <br />October 21, 2010<br />1<br />
  2. 2. Daniel MohlC# MVP and F# Insider<br />October 21, 2010<br />2<br />dmohl@yahoo.com<br />www.twitter.com/dmohl<br />blog.danielmohl.com<br />
  3. 3. What Are We Doing?<br />Why F#?<br />F# Primer/Review<br />F#/C# Silverlight Example<br />F# Silverlight Example<br />F#/C# ASP.NET MVC 2 Example<br />WebSharper Example<br />What Wasn’t Covered?<br />Wrap it Up<br />October 21, 2010<br />3<br />
  4. 4. Why F#?<br />Simple Code to Solve Complex Problems<br />Terse Yet Readable<br />Less Errors<br />Features Not In Other Mainstream Languages<br />Staying Ahead of the Competition<br />October 21, 2010<br />4<br />
  5. 5. Why F# for Web Dev?<br />Asynchronous Workflows and Reactive Programming<br />F#/JavaScript Commonalities<br />Easier to support next generation web development <br />Silverlight<br />HTML5 (Web Sockets, Canvas) <br />Twitter Feed Sample (Reactive Programming)<br />Web Socket Example<br />Canvas Example<br />October 21, 2010<br />5<br />
  6. 6. F# Primer/Review<br />Whitespace Matters<br />The let Keyword<br />Pattern Matching<br />More During the Demos<br />October 21, 2010<br />6<br />
  7. 7. Whitespace Matters<br />October 21, 2010<br />7<br />//F#<br />open System<br />let doSomethingval = <br />val + val<br />Console.WriteLine<br /> (doSomething 1)<br />//C#<br />using System;<br />namespace ConsoleApplication1<br />{<br />class Program<br />{<br />static intdoSomething(intval)<br />{<br />return val + val;<br />}<br />static void Main(string[] args)<br />{<br />Console.WriteLine(<br />doSomething(1)); <br />}<br />}<br />}<br />
  8. 8. The let Keyword<br />October 21, 2010<br />8<br />//F#<br />open System<br />let val2 = 1<br />let doSomethingval = <br />val + val2<br />Console.WriteLine<br /> (doSomething 1)<br />//C#<br />using System;<br />namespace ConsoleApplication1<br />{ <br />class Program<br />{<br /> static int val2 = 1;<br />static intdoSomething(intval)<br />{<br />return val+ val2;<br />}<br />static void Main(string[] args)<br />{<br />Console.WriteLine(<br />doSomething(1)); <br />}<br />}<br />}<br />
  9. 9. Pattern Matching<br />October 21, 2010<br />9<br />Kind of like a switch/case statement, but so much more!<br />
  10. 10. F#/C# Silverlight Example<br />http://visualstudiogallery.msdn.microsoft.com/en-us/64f3d710-04c1-42d2-9e5d-4e20a19a7666<br />October 21, 2010<br />10<br />
  11. 11. F# Silverlight Example<br />http://visualstudiogallery.msdn.microsoft.com/en-us/f0e9a557-3fd6-41d9-8518-c1735b382c73<br />October 21, 2010<br />11<br />
  12. 12. F#/C# ASP.NET MVC2 Example<br />http://visualstudiogallery.msdn.microsoft.com/en-us/c36619e5-0d4a-4067-8ced-decd18e834c9<br />October 21, 2010<br />12<br />
  13. 13. WebSharper Example<br />http://visualstudiogallery.msdn.microsoft.com/en-us/288b94ea-0ea7-4dde-8906-f72eb22fbe1b<br />October 21, 2010<br />13<br />
  14. 14. What Wasn’t Covered?<br />October 21, 2010<br />14<br />Lots of F# Features<br />Other F# Web Frameworks<br />Bistro<br />Suave<br />Frank and Frack<br />
  15. 15. More Information<br />October 21, 2010<br />15<br />Books - http://msdn.microsoft.com/en-us/fsharp/gg262865.aspx<br />F# MSDN - http://msdn.microsoft.com/en-us/fsharp/gg262865.aspx<br />Blogs<br />Twitter<br />Ask – F# has the greatest community around<br />
  16. 16. Daniel MohlC# MVP and F# Insider<br />October 21, 2010<br />16<br />dmohl@yahoo.com<br />www.twitter.com/dmohl<br />blog.danielmohl.com<br />

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