Practical Clojure. If you think that you've found an error in this book, please let us know about it. You will find any confirmed erratum below, so you can check if your concern has already been addressed. On page 18: There is a space after "! " in the typed input which is not in the returned value. On page 32: In the function "square-or-multiply" the second alternative implementation is wrongly indented. On page 33: The output of the prompt is not consistent "#'user/sq" versus "'#user/multiply" (ie. the order of "'" and "#").
On page 44: The application of arg-switch with a custom function seems wrongly indented (ie. the indentation of "(/ a (* b b)))" and "2 3)". On page 46: There is an "-" before rangechecker in the text (which also appears in the index). "#´user/times-pi" => "#'user/times-pi". On page 53-? In all of chapter 4 the symbol "->" is used to denote the result returned from an evaluation, but the symbol is only used in this chapter as far as I can tell. On page 57: In the description of the Neg? Object Computing, Inc. - Java News Brief - March 2009.
By R. Mark Volkmann, Partner Object Computing, Inc. (OCI) last updated on 6/2/13 Contents Introduction The goal of this article is to provide a fairly comprehensive introduction to the Clojure programming language. A large number of features are covered, each in a fairly brief manner. Please send feedback on errors and ways to improve explanations to mark@ociweb.com, or fork the repository and send a pull-request. You said X, but the correct thing to say is Y. Updates to this article that indicate the "last updated" date and provide a dated list of changes will be provided at Code examples in this article often show the return value of a function call or its output in a line comment (begins with a semicolon) followed by "->" and the result. (+ 1 2) ; showing return value -> 3 (println "Hello") ; return value is nil, showing output -> Hello Functional Programming In practice, applications need to have some side effects.
Clojure Overview Getting Started Vars. Learning Clojure. Some paragraphs in [ ] are author notes. They will be removed as the page matures. You should be able to read the text OK if you ignore these notes. This Book is currently being restructured to better satisfy the wikibooks standard. Until completed, duplicate content may be seen. For detailed coverage of Clojure, consult the language and API reference at clojure.org.
Also see Clojure Programming. Clojure (read as closure), is a powerful, lisp-1 programming language designed by Rich Hickey and designed to run on the Java Virtual Machine. Getting Started[edit] History A brief history of the Clojure language. Installation Learn how to install Clojure on Windows, Linux, and Mac Learn how to launch the REPL execution system and the classic "Hello World" application Basics[edit] Basic Syntax Describes the basics in how the applications you write will be interpreted Coding Conventions Quickly describes the generally accepted conventions for Clojure. Functional Programming Namespaces Basic Operations Meta Data.
Dashboard - Clojure Development. Getting_started. Minimal Install java -cp clojure-1.7.0.jar clojure.main user=> (+ 1 2 3) 6 user=> (javax.swing.JOptionPane/showMessageDialog nil "Hello World") Try Clojure online:TryClojure provides a brower-based Clojure REPLHimera provides a browser-based ClojureScript REPL Clojure Tools Community volunteers maintain Getting Started documentation for a number of different tools and approaches.
Books There are now many excellent books about Clojure and ClojureScript. Online Books, Tutorials, and Resources Conferences Clojure/conj (usually in November)Clojure/west (usually in March)EuroClojure (usually mid-year)Clojure events. Getting Started with Vim - Clojure Documentation. Getting Started with Emacs - Clojure Documentation. Thanks for the effort and the instructions given above. As a new entrant into clojure and to some extent to Emacs, I struggled a bit to install and get them working and had to refer many resources in web. To help people like me starting out in "Emacs + Clojure + Swank + Leiningen", I am putting together detailed set of instructions building on top of what is in the page above: DETAILED INSTRUCTIONS - for EMACS + CLOJURE : (emphasis on Windows - will apply to other OSs also): Emacs set up: 1. 2. 3. 4.
Emacs Starter kit set up: 1. There are couple of points which might confuse a newbie. 1.1.An empty emacs.d directory gets created when you install emacs in your home directory. 1.1.1 for Unix ~/. is the home. 1.2 Package dependencies need to be added to init.el and .emacs file. 1.2.1 Either of them alone did not work for me. In init.el add: (require 'package) (add-to-list 'package-archives '("marmalade" . (package-initialize) In .emacs file add the contents given in top of the page. Install Leiningen: A Brief Beginner’s Guide To Clojure. By John Gabriele, last-modified: 2013-08 (using Clojure 1.5.1, Leiningen 2.2.0, and OpenJDK 7) The purpose of this brief guide is to provide an overview of the Clojure ecosystem while also helping new users quickly get up and running.
This guide concerns the original, Java-based Clojure implementation. There are others. It’s not a Clojure language tutorial; there are already a number of good ones available (linked to later). This guide is not comprehensive; it’s just a handful of nicely-organized notes that I thought would be most useful to new Clojure users. The author (hi!) It’s intended that the chapters of this guide be read in order. This guide may contain errors. let me know (jgabriele at fastmail dot fm)
Clojure Cheat Sheet (Clojure 1.3, sheet v1.4) Getting Started with Eclipse and Counterclockwise - Clojure Documentation. Clojure Programming. Clojure is a dynamic programming language for the JVM. Introduction[edit] People come to Clojure from a variety of backgrounds. The purpose of this book is to help everyone get the most out of the Clojure language. It is not meant as a replacement for the documentation, found at the Clojure site. Please do not copy material from there to here!
Feel free to post your own code, written in the Clojure language, here. Implementations[edit] There are a number of different implementations of the Clojure language: Clojure (the original Java-based implementation)ClojureScript (compiles to JavaScript)ClojureCLR (for Microsoft's .NET framework)clojure-py (Python-based)clojure-scheme (compiles to Scheme)ClojureC (compiles to C) See also Clojure-metal (thoughts/plans for Clojure on LLVM).
FAQ[edit] Some answers to Frequently Asked Questions. Getting started[edit] The Getting started section covers obtaining and installing Clojure as well as basic setup of editors such as Emacs or Vim. Concepts[edit]