Recorded at:

Functional Thinking

Sections

Architecture & Design,

Development

Topics

Scala ,

Java ,

Groovy ,

Websphere ,

IBM ,

Application Servers ,

Dynamic Languages ,

Strange Loop 2011 ,

Functional Programming ,

Languages ,

Strange Loop ,

Agile in the Enterprise ,

Companies ,

Conferences ,

Programming ,

Agile

Share |

RelatedVendorContent

Monitor your Production Java App - includes JMX! Low Overhead - Free download

Using Drools? See what you're missing! Get the Power of Drools with the Assurance of Red Hat

NOSQL for the Enterprise

Spring Data Neo4j Tutorial

The Agile Tester

Related Sponsor

In today’s hyper-competitive world, later may be too late to adopt Agile development and this Roadmap for Success will help you get started. Download "Agile Development: A Manager's Roadmap for Success" now!

1. Back to top

   Always enjoying the OOP to FP presentations and books!

   by Aggelos Biboudis

   It is a nice trick to unblock the mind. Of course an fp introduction can go as far as +oo, even for an intro but Neal Ford, gave a nice and concise speech on this matter. Functional programming for the working OOP programmer. I liked it!

   Reply

2. Back to top

   Strange Loop

   by Alex Miller

   If you're interested in other upcoming videos from Strange Loop, the full release schedule is here and all slides are here. If you want to be notified about Strange Loop announcements in the future, sign up for the mailing list.

   Reply

3. Back to top

   Functional Programming Should be Taught First

   by Faisal Waris

   Functional Programmng (FP) requires a declartive, mathematical way of thinking.
   
   Unfortunately, our minds get corrupted too early by imperative, OO thinking. And - as I found out - (re-)learning functional programming requires quite a bit of effort (to get those neurons re-wired). CS shools should teach FP first. Its gratifying to see CMU taking a lead.
   
   A declarative way of thinking is a better basis for creating abstractions.

   Reply

4. Back to top

   Very good introduction of Functional Programming

   by 哲 永田

   I like this video very much. I believe this is very educational for new comers of FP, like me. Neal Ford is very good.

   Reply

5. Back to top

   Re: Functional Programming Should be Taught First

   by Aggelos Biboudis

   As I always say, OOP to Functional is really difficult, Functional to OOP could be just disturbing, yet doable in a timely manner.

   Reply

6. Back to top

   Funny how examples are always math

   by Leandro A

   They should give examples of end-user software like how to implement a web browser using functional programming or how to implement a blog or something.

   Reply

7. Back to top

   Slides

   by Gabriel Kastenbaum

   Hi,
   
   Just to notice that what you see at 20:00 are not matching with the slides that are shown. Neil Ford talks about slide no 45, not 35 . And I did not find the lides about some clojure code. Maybe the version of the slides that is given here is not the right one?
   Anyway, it's a minor problem. The presentation is just great so far :)

   Reply

8. Back to top

   Re: Funny how examples are always math

   by Hermann Schmidt

   Indeed, most real world problems are about shuffling data around and transforming structures. When was the last time I had to invent a real algorithm, which may work recursively? I cannot remember.
   Of course math examples are perfect for functional programming. Math is all about functions and recursive definitions after all.
   
   I think, when data structures are able to execute code on behalf of the caller (with closures), and thus avoid the ubiquitous iteration loops, most work is done already. A mainstream enterprise Java program contains mostly copy operations and loops over structures. Sophisticated algorithms are not often needed.
   The standard data structures Map, Set, List, Tree, Array should provide processing algorithms, which potentially can run in parallel. The so-called business logic as such has almost never anything to do in parallel, really. It's all in the data structures.
   
   The "business" services very rarely have any state, they are basically data structure transformers between some user or external interfaces and persistent data storage, which carry the state.
   
   One reason why I enjoy programming in Ruby: Almost no loops! Array, Hashes, Strings, Files, all have operations based on closures. A real pleasure to program.
   As for Java, a decent closure syntax and a rewrite of the standard library would help a lot.

   Reply

9. Back to top

   Re: Funny how examples are always math

   by Faisal Waris

   Agree that closures/lambdas make data manipulation a lot easier - even when not working on complex algorithms. Such 'functional' data manipulation can be more easily parallelized.
   
   Example: Word Count is the canonical ("Hello World" equivalent) demo problem in map-reduce. Following are F# serial and parallel versions of Word Count - which are strikingly similar:
   
   

   
   let file = @"C:\Users\Fai\Downloads\War_and_Peace.txt"
   let splitLine (l:string) = ...function to split a line into words...
   
   //serial word count
   file |> File.ReadLines
   |> Seq.map splitLine
   |> Seq.collect (fun xs -> xs)
   |> Seq.map (fun w -> w.ToLower())
   |> Seq.countBy (fun w -> w)
   
   //parallel word count
   file |> File.ReadLines
   |> PSeq.map splitLine
   |> PSeq.collect (fun xs -> xs)
   |> PSeq.map (fun x -> x.ToLower())
   |> PSeq.countBy (fun w -> w)
   
   

   Reply

10. Back to top

    Props to the Camera Operator

    by William Pollock

    Nice presentation, of the sort I wish I would have seen years ago. Ford paces back and forth throughout the presentation -- whoever ran the camera for this session must have been going crazy, but she/he did a great job.

    Reply

11. Back to top

    Re: Functional Programming Should be Taught First

    by Damien Pollet

    Do you realize you've written most of this comment in the passive voice?

    Reply

12. Back to top

    Re: Functional Programming Should be Taught First

    by Faisal Waris

    Sorry, I was just being lazy. The comment doesn't take effect unless someone starts reading it. :)

    Reply

• Older >