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InfoQ Homepage Presentations Clojure's Solutions to the Expression Problem

Clojure's Solutions to the Expression Problem

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Summary

Chris Houser presents the expression problem showing two ways to solve it in some languages, followed by a demonstration of solving it using multimethods and protocols in Clojure, mentioning pros and cons of each solving method.

Bio

Chris Houser is a co-author of "The Joy of Clojure", and a primary contributor to Clojure itself. He is a senior software developer at Sentry Data Systems, where he's using Clojure to develop a distributed application platform. His lifelong passion for programming began when he was a child and drives him to continue learning and exploring new languages today.

About the conference

Strange Loop is a developer-run software conference. Innovation, creativity, and the future happen in the magical nexus "between" established areas. Strange Loop eagerly promotes a mix of languages and technologies in this nexus, bringing together the worlds of bleeding edge technology, enterprise systems, and academic research. Of particular interest are new directions in data storage, alternative languages, concurrent and distributed systems, front-end web, semantic web, and mobile apps.

Recorded at:

Nov 15, 2010

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Community comments

  • Broken code in slides

    by Chris Houser,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    It looks like some of the slides didn't survive the conversion process to this site. You can follow along on with the less-broken slides at: talk-expression-problem.heroku.com

  • Corrupted slides

    by Alex Miller,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    A few of the slides are weirdly corrupted (24, 25 at least). The full (correct) slides are available here: strangeloop2010.com/system/talks/presentations/... until that gets figured out.

  • Interesting discussion on this on lambda the ultimate

    by Russell Leggett,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    The discussion there seems to mostly remark about the simplified definition of "The Expression Problem", which I also noticed watching this. However, looking at the expression problem with a loose definition, I think this talk was great and should be some real food for thought for the more traditional OO devs.

  • Re: Broken code in slides

    by razvan baciu,

    Your message is awaiting moderation. Thank you for participating in the discussion.

    Thanks for pointing it out. All the synchronized slides are ok now.

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