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propensive's profile
Jon Pretty
Jon Pretty
Jon Pretty
@propensive

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Jon Pretty

@propensive

Supporting Scala through professional training and open-source software. Responsible for Magnolia, Fury, Scala World and Functional Africa.

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propensive.com
Joined July 2010

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    1. Jon Pretty‏ @propensive 28 Mar 2018

      Shadowing in Scala's for-comprehensions is a nice feature. It has the feel of mutability, but safer, and shadowing's almost always what you want. for { x <- Try(doSomething) x <- mightFail(x) x <- returnTry(x) } yield x Unfortunately it only works with flatMaps, not maps.

      2 replies 7 retweets 36 likes
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    2. Leif Battermann #BlackLivesMatter‏ @leifbattermann 28 Mar 2018
      Replying to @propensive

      Isn't the a good spot to kleisli?

      1 reply 0 retweets 3 likes
      Jon Pretty‏ @propensive 28 Mar 2018
      Replying to @leifbattermann

      Often, yes. Though I sometimes want to have other flatMaps between the ones which are operating on the "same" object.

      7:54 AM - 28 Mar 2018 from East Worldham, England
      • 1 Like
      • Leif Battermann #BlackLivesMatter
      0 replies 0 retweets 1 like

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