Ben Alman » Partial Application in JavaScript
Unless you've used another functional programming language such as ML or Haskell, concepts such as partial application and currying in JavaScript may be foreign to you. That being said, once you understand these concepts, you can put them to use in your own code. Note: this article originally appeared on the MSDN Script Junkie site, but has since been substantially rewritten. While that version of
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追記 カリー化を間é•ãˆã¦ã‚«ãƒ¼ãƒªãƒ¼åŒ–ã¨ã„ã†è¡¨è¨˜ã‚’ã—ã¦ã„ãŸã®ã‚’ä¿®æ£ã—ã¾ã—ãŸã€‚ ãã‚‚ãもカリー化ã¨ã¯ä½•ã‹ 複数ã®å¼•æ•°ã‚’å–る関数ã¯ã€ä¸€ã¤ã®å¼•æ•°ã‚’å–ã‚‹ã€é–¢æ•°ã‚’è¿”ã™é–¢æ•°ã®é€£ç¶šã¨ã—ã¦è¡¨ç¾ã§ãã‚‹ã¨ã„ã†ã“ã¨ã€ã¨è¨€è‘‰ã§è¡¨ç¾ã—ã¦ã‚‚抽象的ã™ãŽã‚‹ã®ã§ã€ã¡ã‚‡ã£ã¨å¼ã§è¡¨ã—ã¦ã¿ã‚‹ã€‚ ã¾ãšåˆã‚ã«ãƒ©ãƒ ダã®å°Žå…¥ 例ã¨ã—ã¦ã€ã‚ã‚‹æ•´æ•°ã«å¯¾ã—ã¦ãƒ—ラス1ã™ã‚‹é–¢æ•°ã‚’定義ã™ã‚‹ã€‚ã“ã®ã‚ˆã†ãªé–¢æ•°ã¯ã€ã¨ã—ã¦è¡¨ç¾ã§ãる。 ã“ã“ã§ã“ã®é–¢æ•°ã¯plusoneã¨ã„ã†åå‰ã‚’与ãˆã‚‰ã‚Œã¦ã„ã‚‹ãŒã€ã“ã®x + 1ã¨ã„ã†é–¢æ•°ãã®ã‚‚ã®ã‚’表ç¾ã™ã‚‹ã‚ˆã†ãªè¨˜æ³•ãŒã‚ã‚‹ã¨ä¾¿åˆ©ã ã‚ã†ã€‚ãã“ã§ã€ã‚’ãã®ã‚ˆã†ãªè¨˜æ³•ã¨ã—ã¦å®šç¾©ã™ã‚‹ã€‚ ã“ã®è¨˜æ³•ã‚’用ã„ã‚‹ã“ã¨ã«ã‚ˆã‚Šã€ä¸Šè¨˜ã®ã¯ã¨ã—ã¦è¡¨ç¾ã§ãるよã†ã«ãªã‚‹ã€‚ã¤ã¾ã‚Šã€é–¢æ•°ãれ自体を表ã™è¨˜æ³•ã‚’å°Žå…¥ã™ã‚‹ã“ã¨ã«ã‚ˆã£ã¦ã€é–¢æ•°ã®åå‰ã¨ã€é–¢æ•°ãれ自体を区別ã™ã‚‹ã“ã¨ãŒã§ãるよã†ã«ãªã‚‹ã€‚ カリー化 ã“ã®ã‚ˆã†ãªè€ƒãˆæ–¹ãŒä¾¿åˆ©ãªã®ã¯ã€é–¢æ•°ã‚’è¿”ã™é–¢æ•°ã¨ã„ã†ã‚‚ã®ã‚’表ç¾ã§ãるよ
Functional Programming in Javascript
This is an interactive learning course with exercises you fill out right in the browser. If you just want to browse the content click the button below: Show all the answers so I can just browse. Functional Programming in Javascript This is a series of interactive exercises for learning Microsoft's Reactive Extensions (Rx) Library for Javascript. So why is the title "Functional Programming in Javas
An Intro to Functional Programming Concepts in JavaScript
Much of functional programming is about composing functions together to handle our data in predictable ways. Simple functions neatly tied together create increasingly complex, yet dependable functions to build upon. This blog post is part 1 of a multi-part series. In part 1, we will introduce the library Ramda and the concepts of composition, pointfree style, and functors through the simplest of e
A Functional Programmer’s Introduction to JavaScript (Composing Software)
Note: This is part of the “Composing Software†series (now a book!) on learning functional programming and compositional software techniques in JavaScriptES6+ from the ground up. Stay tuned. There’s a lot more of this to come! Buy the Book | Index | < Previous | Next > For those unfamiliar with JavaScript or ES6+, this is intended as a brief introduction. Whether you’re a beginner or experienced J
JavaScriptã§bind()を使ã£ã¦éƒ¨åˆ†é©ç”¨ã™ã‚‹ | POSTD
JavaScriptã®ä¸ã«ã¯ã‚³ãƒ¼ãƒ‰ã‚’ã‚‚ã£ã¨ã‚·ãƒ³ãƒ—ルã§è¦‹ã‚„ã™ãã§ãるパターンãŒã‚ã‚‹ã®ã«ã€ã‚ã¾ã‚Šä½¿ã‚ã‚Œã¦ã„ãªã„ã‚‚ã®ãŒã‚ã‚Šã¾ã™ã€‚皆ã•ã‚“ã‚‚ Function.prototype.bind ã¯ã”å˜ã˜ã§ã—ょã†ã€‚é »ç¹ã«ä½¿ã‚ã‚Œã¦ã„㟠var that = this ã‚„ var self = this ã®ä»£ã‚ã‚Šã«ãªã‚‹é–¢æ•°ã§ã™ã€‚よãã‚ã‚‹ã®ãŒä»¥ä¸‹ã®ã‚ˆã†ãªä¾‹ã§ã™ã€‚ this.setup = function () { this.on('event', this.handleEvent.bind(this)); }; 第1引数㌠bind （æŸç¸›ï¼‰ã•ã‚Œã€è¿”ã•ã‚Œã‚‹é–¢æ•°å†…㧠this ã¨ã—ã¦åƒãã¾ã™ã€‚ã‚ã¾ã‚ŠçŸ¥ã‚‰ã‚Œã¦ã„ã¾ã›ã‚“㌠bind ã¯è¤‡æ•°ã®ä»®å¼•æ•°ã‚’å–ã‚‹ã“ã¨ãŒã§ã〠bind ã•ã‚ŒãŸé–¢æ•°ãŒå‘¼ã³å‡ºã•ã‚Œã‚‹ã¨ bind ã•ã‚Œã‚‹å¾Œç¶šã®ã™ã¹ã¦ã®ä»®å¼•æ•°ã¯ã€ãã®ä»®å¼•æ•°ãƒªã‚¹ãƒˆã®å‰ã«ä»˜åŠ ã•ã‚Œã¾ã™ã€‚ ã¤ã¾ã‚Šä»¥ä¸‹ã®ã‚ˆã†ã«ã€é–¢æ•°ã‚’部分é©ç”¨ã™
Reddit - Dive into anything
The Haskell programming language community. Daily news and info about all things Haskell related: practical stuff, theory, types, libraries, jobs, patches, releases, events and conferences and more...
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å‰æ›¸ã ã“ã‚Œã¯ãƒ¢ãƒŠãƒ‰ãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ«ã§ã¯ãªã„ã€ã ã‚ã†ã€‚ ã“ã®æ–‡ç« を書ãå‹•æ©Ÿã¯ã€ãƒ¢ãƒŠãƒ‰ã‚’知らãªã„人ãŒãƒ¢ãƒŠãƒ‰ã¨ã„ã†æœªçŸ¥ã®æ¦‚念ã«æœŸå¾…ã—ã¦ã„ã‚‹ã‚‚ã®ãŒæ ¹æœ¬çš„ã«ãšã‚Œã¦ã„ã‚‹ã‹ã‚‚ã—ã‚Œãªã„ã¨ã„ã†æ‡¸å¿µã§ã‚る。 命令型言語ã§ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’覚ãˆãŸäººãŒãƒ¢ãƒŠãƒ‰ã€ã‚‚ã—ãã¯Haskellや関数型言語（ã¨è¨€ã‚れる言語）をå¦ç¿’ã™ã‚‹éš›ã«ã—ã°ã—ã°å—ã‘る助言ã¯ã“ã†ã ： 「命令型言語ã§ä»Šã¾ã§ç¿’ã£ãŸã“ã¨ã‚’å…¨ã¦å¿˜ã‚Œã¦å–り組むã¨è‰¯ã„よ〠ã“ã®åŠ©è¨€ã¯ãã“ã¾ã§å¤–ã—ã¦ã„ãªã„ã‹ã‚‚ã—ã‚Œãªã„ãŒã€é›‘ã§ã‚る。 ã„ã¤ã‹åƒ•ã®å‹äººãŒã“ã®ã‚ˆã†ãªã“ã¨ã‚’言ã£ãŸï¼š 「プãƒã‚°ãƒ©ãƒžãŒãƒãƒ¼ãƒ ã§åƒã時ã€å¿…è¦ãªã®ã¯ç›¸æ‰‹ã‚’æ€ã„ã‚„ã‚‹æ°—æŒã¡ã よã〠ã“ã®ç™ºè¨€ã¯æらããã“ã¾ã§å¤–ã‚Œã¦ã¯ã„ãªã„ãŒã€æ€ã„ã‚„ã‚Šã§å…¨ã¦ã‚’解決ã—よã†ã¨ã™ã‚‹ã¨ã€å…¨ã¦ã®ã‚³ã‚¹ãƒˆãŒéžå¸¸ã«é«˜ããªã‚‹ã€‚個々ã®å•é¡Œã¸ç›®ã‚’å‘ã‘ã€ãã‚Œãžã‚Œã®è§£æ³•ã‚’知ã£ã¦ãŠãã“ã¨ã«ã‚ˆã£ã¦ã‚³ã‚¹ãƒˆã¯ä½Žãã™ã‚‹ã“ã¨ãŒå‡ºæ¥ã‚‹ã¨åƒ•ãŸã¡ã¯çŸ¥ã£ã¦ã„る。ã¾ã‚å‹äººã¯ãã‚“ãªã“ã¨
So you're learning OCaml... - Edgar Aroutiounian
For people on OS X, you can get it on brew and all the Linux distros should have opam for you to install. For Windows people, get a VM. Once you have opam installed, you probably want to do: This will install the latest version of the compiler. ocamlfind is a program that predates opam and wraps the standard OCaml compilers: ocamlc and ocamlopt. The former is a byte code compiler and the latter cr
Effective Scala
Effective Scala Marius Eriksen, Twitter Inc. marius@twitter.com (@marius) [translated by Yuta Okamoto (@okapies) and Satoshi Kobayashi (@scova0731)] Table of Contents åºç« 書å¼: ホワイトスペース, 命å, インãƒãƒ¼ãƒˆ, ä¸ã‚«ãƒƒã‚³, パターンマッãƒ, コメント åž‹ã¨ã‚¸ã‚§ãƒãƒªã‚¯ã‚¹: 戻り型アノテーション, 変ä½, 型エイリアス, æš—é»™ コレクション: 階層, 使ã†, スタイル, 性能, Java コレクション 並行性: Future, コレクション åˆ¶å¾¡æ§‹é€ : å†å¸°, Return, forループã¨å†…包, require 㨠assert 関数型プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°: 代数的データ型ã¨ã—ã¦ã®ã‚±ãƒ¼ã‚¹ã‚¯ãƒ©ã‚¹, Option, パターンマ
Effective Scala
Effective Scala Marius Eriksen, Twitter Inc. marius@twitter.com (@marius) Table of Contents Introduction Formatting: Whitespace, Naming, Imports, Braces, Pattern matching, Comments Types and Generics: Return type annotations, Variance, Type aliases, Implicits Collections: Hierarchy, Use, Style, Performance, Java Collections Concurrency: Futures, Collections Control structures: Recursion, Returns,
大è¦æ¨¡åˆ†æ•£ã‚·ã‚¹ãƒ†ãƒ ã®ç¾åœ¨ -- Twitter
2. Most of our systems are big “Future transformers†- Marius Eriksen 3. predictable performance is difficult to achieve. In a predictable system, worst-case performance is crucial; average performance not so much. ... predictable performance is difficult to achieve. In a predictable system, worst-case performance is crucial; average performance not so much. - Peter Schuller 4. predictable perform
Don’t Be Scared Of Functional Programming — Smashing Magazine
Stricter functional programming languages are typically used when a system’s performance and integrity are both critical — i.e. your program needs to do exactly what you expect every time and needs to operate in an environment where its tasks can be shared across hundreds or thousands of networked computers. These languages have a steep learning curve for most front-end web developers; however, ma
What I Wish I Knew When Learning Haskell
What I Wish I Knew When Learning Haskell Version 2.5 Version This is the fifth major draft of this document since 2009. HTML Version Screen PDF Printable PDF EPUB Version Kindle Version Pull requests are always accepted for changes and additional content. This is a living document. The only way this document will stay up to date is through the kindness of readers like you and community patches and
Spreadsheet-like programming in Haskell
What if I told you that a spreadsheet could be a library instead of an application? What would that even mean? How do we distill the logic behind spreadsheets into a reusable abstraction? My mvc-updates library answers this question by bringing spreadsheet-like programming to Haskell using an intuitive Applicative interface. The central abstraction is an Applicative Updatable value, which is just
スケーラブルã§é–¢æ•°åž‹ã§ã‚ªãƒ–ジェクト指å‘ãªScala入門
Scalaã®ç‰¹å¾´ã‚’紹介ã—ã€åŸºæœ¬æ§‹æ–‡ã‚„関数〠クラスãªã©ã€Scalaã®åŸºæœ¬çš„ãªæ©Ÿèƒ½ã«ã¤ã„㦠解説ã™ã‚‹å…¥é–€é€£è¼‰ Eclipseã§Scalaプãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’始ã‚ã‚‹ãŸã‚ã®åŸºç¤Ž スケーラブルã§é–¢æ•°åž‹ã§ã‚ªãƒ–ジェクト指å‘ãªScala入門（1）　概è¦ã‚„5ã¤ã®ç‰¹å¾´ã‚’紹介ã—ã€é–‹ç™ºç’°å¢ƒã‚’構築ã—ã¦å¯¾è©±åž‹å®Ÿè¡Œç’°å¢ƒã€ŒREPLã€ã‚„Eclipse上ã§Hello Worldを実行ã—ã¾ã™
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An introduction to functional programming in JavaScript
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