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The Dark Side of Scala
val is better than Java's final? JavaScript hoisting var r = double(1) + triple(1); function double(x) {return x * 2;} var triple = function(x) {return x * 3;} Throws: java.lang.NullPointerException at Vals.<init>(Vals.scala:2) Simplified class Vals { println(answer) private[this] val answer = 42 } Prints... 0 return in lambda def samples(xs: TraversableOnce[Int]) { xs map {x => return x * 10} for
Developers Summit 2014 「Play2/Scalaã§ãƒ‰ãƒ¡ã‚¤ãƒ³é§†å‹•è¨è¨ˆã‚’利用ã—ãŸå¤§è¦æ¨¡Webアプリケーションã®ã‚¹ã‚¯ãƒ©ãƒ 開発ã®å‹˜æ‰€ã€
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Scala with DDD
32. trait Entity[ID <: Identity[_]] { ! /** エンティティã®è˜åˆ¥å。 */ val identity: ID ! override final def hashCode: Int = 31 * identity.## ! override final def equals(obj: Any): Boolean = obj match { case that: Entity[_] => identity == that.identity case _ => false } ! } 33. trait Identity[+A] extends Serializable { ! def value: A ! } ! object EmptyIdentity extends Identity[Nothing] { ! def value = throw E
Twitter: 大ããªãƒˆãƒ©ãƒ•ã‚£ãƒƒã‚¯ã«è€ãˆã†ã‚‹ã‚¢ãƒ¼ã‚テクãƒãƒ£ãƒ¼ã¸ã®å¤‰æ›´ - ワザノム| wazanova.jp
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Scala.js - Write in Scala for the browser
Sébastien Doeraene @sjrdoeraene Scala Days 2013, June 12th LAMP, lamp.epfl.ch École polytechnique fédérale de Lausanne, Switzerland JavaScript The one and only language of the Web A scripting language, designed for programming in the small How to scale to Rich Internet Applications? JavaScript as a target language Compile a higher-level language to JavaScript GWT, Scala/GWT CoffeeScript, Dart, Typ
イマドã‚ã®IDE事情(121) Scala開発ã¯Eclipseã«æ±ºã¾ã‚Š? 「Scala IDE for Eclipse 2.0ã€ç™»å ´
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YammerãŒScalaã‹ã‚‰Javaã¸ç§»è¡Œä¸
原文(投稿日：2011/11/30)ã¸ã®ãƒªãƒ³ã‚¯ Yammerã®å¾“æ¥å“¡ã§ã‚ã‚‹Coda Haleæ°ãŒScalaã®å•†ç”¨ãƒ™ãƒ³ãƒ€ã§ã‚ã‚‹Typesafe社ã¸é€ã£ãŸãƒ¡ãƒ¼ãƒ«ãŒYCombinatorã¨GitHubã®gist経由ã§ãƒªãƒ¼ã‚¯ã—ãŸã€‚メールã«ã‚ˆã‚Œã°ã€Yammerã¯è¤‡é›‘ã•ã‚„性能é¢ã‚’é‘‘ã¿ã¦ã€åŸºç›¤ã®ã‚¤ãƒ³ãƒ•ãƒ©ã‚’Scalaã‹ã‚‰Javaã¸æˆ»ã™ãã†ã 。 Yammerã®PR部門ã®Shelley Riskæ°ã«ã‚ˆã‚Œã°ã“ã®ãƒ¡ãƒ¼ãƒ«ã¯Coda Haleæ°ã®å€‹äººçš„ãªæ„見ã§ã‚ã‚Šã€Yammerã®å…¬å¼ãªè¦‹è§£ã§ã¯ãªã„ã¨ã®ã“ã¨ã 。ã“ã®ãƒªãƒ¼ã‚¯å¾Œã€Coda Haleæ°ã¯è‡ªèº«ã®è€ƒãˆã‚’http://codahale.com/the-rest-of-the-story/ã§è¡¨æ˜Žã—ã¦ã„る。æ°ã¯ã“ã®ãƒ¡ãƒ¼ãƒ«ã¯Donald Fischeræ°(Typesafe社ã®CEO)ã‹ã‚‰ã®ãƒ•ã‚£ãƒ¼ãƒ‰ãƒãƒƒã‚¯ã®è¦è«‹ã«ç”ãˆãŸã‚‚ã®ã§ã€ç§»è¡Œã‚’示唆ã™ã‚‹ãƒ„イートを補足ã—ãŸã‚‚ã®ã ã¨èª¬æ˜Žã—ã¦
Type safe mongodb with Scala #montotokyo
Type safe mongodb with Scala #montotokyo 1. Type-safe MongoDB in Scala - é™çš„型付ã‘言語ã¨MongoDBã®ä»˜ãåˆã„æ–¹ -Fungoing LLC / Satoshi MiyauchiTwitter : @bibrost 2. Profile 宮内 è– / Satoshi Miyauchi @bibrost フゔンゴー゗ングåˆåŒä¼šç¤¾ä»£è¡¨ å…¼ æ ªå¼ä¼šç¤¾ç›£æŸ»ã¨åˆ†æž システム開発担当 Webデザ゗ンã€æ˜ åƒç·¨é›†ã€Webサービスã®é–‹ç™ºãªã©ãƒ»ãƒ»ãƒ»ã„ã‚ã„゠引ãã“もりフリーランス生活 Scala＋Lift＋MongoDBã®çµ„ã¿åˆã‚ã›ã‚’昨年11月より利用ä¸ã€‚ 自社サービス１ã¤ã€ã‚¯ãƒ©ã‚—ゕントワーク１ã¤ã§Scala+MongoDBを利用。 Page : 1 3. Case Example å‹é–“和代æ°ã®æä¾›ã™ã‚‹æœ‰æ–™ã‚³ãƒ³ãƒ†ãƒ³ãƒ„会員å‘ã‘コミュニテ
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Build and run apps that react to change
Akka is relied upon when application responsiveness must be guaranteed. Industry titans and disruptors use Akka to power apps that automatically adapt to change. Akka apps are elastic, agile, and resilient...no matter what. Akka is relied upon when application responsiveness must be guaranteed. Engineering teams use a simple SDK and powerful libraries to build transactional, durable, and real-time
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