learn clojure

sumoffactors = su M.memoize () In Listing 1, the result of the Sumoffactors method is automatically cached. You can also use another method to customize the buffering behavior, such as Memoizeatleast () and Memoizeatmost (). Clojure also provides a memo feature that is irrelevant to Scala's implementation. Advanced features (such as the memo feature) in the next language (and some Java frameworks) will gradually find their way into the Java language

The project uses Clojure, generally will use the Leinigin or Maven plugin to compile, the official network on the manual compilation of a pen, read a bit abstract.Clojure Environment:[Jw-macbook]:d emo johnwang$ ll $CLOJURE _homeTotal 9280[email protected] Johnwang Staff 476 2 3 10:59.Drwxr-xr-x Johnwang Staff 510 3 26 14:32.. /[Email protected] 1 Johnwang staff 6508 2 3 10:54 build.xml[Email protected] 1 J

It is not difficult to understand the VaR, ref, agent, and atom provided by colure. The key is that you do not know where to use them? With the increase in the number of clojure codes, we have a better understanding of var. Next we will share with you that it will be a pleasure to help you understand var more quickly. Java variables are real variables. You can change them at any time and change them according to your thinking. You don't even pay att

Talk about my own background, I am a dabbler programmer, do anything like to know more and try again, I have been exposed to many languages, most of them as tools to useMost of my work now lies in data mining and machine learning, and web development, and the first language I've worked with is Python, where I learned about the concept of functional programming.Speaking of Lisp is said to be a copy of Lisp Python, and learned that the language is from the hacker and painter This book, is said to

In a previous e-mail, I pointed out that among the many changes, the most obvious is that the development of using other popular languages on the JVM on the Java domain has become more and more rapid. Some old and new-created JVM-based languages---JRuby and Jython, Java-style languages---Groovy and Scala and brand, new languages---Clojure and Kotlin, These languages give us a choice------get the performance and reliability of the JVM but can use a dif

Code Path:https://github.com/bluesilence/Lisp/blob/master/clojure/projects/room-escape/.Data ModelBased on the draft, the data models can be built of 4 major units:1. StoryIt ' s the base unit of a Room-escape story. The Storyhas following members:1) name:the name of this guest, shown in the Room-selection menu2) description:the Description of this guest, shown in the Room-selection menu3) starting-message:the starting message when player begins to pl

Hacker story: How to take over the computer of Java/Clojure/Scala programmersSonatype has responded to this post and declared on their blog that the SSL link will be enabled for all users. This change makes the Java program ecosystem more secure and reliable, and I am very happy with this. Nevertheless, if you see this blog and consider spending 10 dollars to assess whether your product needs this security, the answer is no. This is like a car company

Translated from a monad tutorial for clojure programmers (Part 2) In Part1, we have learned the two most basic monad: identity monad and maybe monad. In this section, we will continue to introduce sequence monad and contact the M-result function for explanation. Finally, I will demonstrate two useful monad wildcard operators. Sequence monad (which corresponds to list monad in Haskell) is one of the most frequently used monads.

First of all, I do have to say that there are many tutorials on installing JDK 7 on Ubuntu. However, most of them are binary files based on JDK 6. If you go to the Oracle official website, you will find that all files are compressed. tar.gz. In addition, this article also provides the download link for Clojure. If you have a file name, modify it based on your actual situation! Mdash; m First of all, I do have to say that there are many tutorials on

Clojure is a functional language.Functional language is not the mainstream of today's development language.Most mainstream is the "imperative" language (imperative language)Among them, the object-oriented paradigm is mostly.On the trend of development, parallel, distributed, multi-CPU is becoming more and more popular.Mainstream language in the treatment of these changes is inefficient, a little powerless.Therefore, in recent years, functional languag

No matter what development environment is used, you must first familiarize yourself with the basic command line usage methods. Reference from the official site: http://clojure.org/downloads First, make sure that JDK 5 or later is installed. Then download the release package for clojure1.4: http://repo1.maven.org/maven2/org/clojure/clojure/1.4.0/clojure-1.4.0.zi

The let parameter decomposition of clojure is clearly described in this document. For example (let[[abcd:ase][1234567]][abcde])->[123(4567)[1234567]] This let can be used as a value assignment in other languages. For example, the int I = 0 in Java also supports multi-variable assignment. For example, Perl's my ($ A $ B) = @ A (I don't know if it's right, that's what it means ). However, clojure changes

1. https://github.com/clojure-emacs/cider#keyboard-shortcuts2. Install Emacs 24.53. http://clojure-doc.org/articles/tutorials/emacs.html4. http://stackoverflow.com/questions/23233470/how-to-use-ciders-built-in-autocompletion-in-clojure/28249313#282493135. Edit. Lein PROJECT.CLJ　　{: User{:java-cmd "C:\\Program Files\\java\\jdk1.8.0\\bin\\java.exe":p lugins [[Cider

Corresponding to stdin, stdout, and stderr, clojure provide three symbols by default: * In *, * out *, and * err. You can use the binding macro to perform redirection. For example, the following example redirects * out * to a file: user=> (binding [*out* (java.io.FileWriter. "/home/chenshu/tt")] (println "Write to tt.") (flush))nil Statements originally output to the console are now written to the TT file. Note that (flush) is used to write data in

In Clojure, almost everything is a value.State is the value of an identity at a point in time.For identity, four types of references are available in Clojure. Refs, making changes to the shared state in a coordinated,synchronous manner Atoms, changing the shared state in uncoordinated,synchronous mode Agents, changing the shared state in asynchronous mode Vars, manages thread local stat

1 in Eclipse Marketplace all Clojure will see this counterclockwise plugin, directly click Install2 Create a Project setup jdk (I have 2 versions of the JDK on this machine, one 1.6 and 1.8 by default is 1.6) using 1.83 run Clojure, if you find that the JDK running Clojure is inconsistent with the JDK you set up, please check compile if no problemSo is the Lein p

DO and block statementsIn Scala, statements enclosed in curly braces {} form a block, and its value is the value of the last statement.Scala> val a = { | println ("a") | 1}aa:int = 1{println ("a"); 1} has a value of 1.In Clojure, it is sometimes necessary to make multiple form blocks, and the value of this block is the value of the last form. Just use doUser=> (Def A (Do (println "a") 1)) a# ' user/auser=> A1 Do takes any number of fo

Code Path:Https://github.com/bluesilence/Lisp/tree/master/clojure/projects/room-escapeAs I has been a fan of room-escape games, there has always been a desire to make my own story of a Room-escape game. However, I ' m not a UX and don ' t know the much about GUI. So I created the Pure-text room-escape game, with the scalable API for new stories.1. Build the model of aTo begin with, I pictured a draft-class, with nothing but a door and a table.Then the

Create a new Clojure project in Eclipse clj01Clojure operation MySQL relies on the Mysql-connector-java, Clojure-contrib and JAVA.JDBC three jar packages.PROJECT.CLJ configuration information is as follows: Configuration is complete: dependencies save, the system will automatically download the configured jar package information.(Defproject clj01"0.1.0-snapshot":d escription"fixme:write Description": URL"Ht

Symbol writing method: 1. It cannot start with a number. 2. It can be followed by text or numbers and *, + ,!, -,_,? 3./is a special character. It can only appear once in symbol. Generally, namespace is on the left. For example, my-namespace/Foo. 4 .. It is also a special character and can appear in symbol multiple times. For example, java. util. bitset. 5.: It can be used in symbol multiple times, but it cannot be continuous. 6. the symbol at the beginning or end is the symbol used by