Clojure is a dynamic, general-purpose programming language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming. Clojure is a compiled language, yet remains completely dynamic – every feature supported by Clojure is supported at runtime.
Clojure was created by Rich Hickey and is developed by a core team of developers at Cognitect, which supports this work.The Clojure development team values a measured and thoughtful approach to language evolution with a strong emphasis on maintaining backward compatibility.
In Clojure, however, everything is an expression! Everything returns a value, and a block of multiple expressions returns the last value. Expressions that exclusively perform side-effects return nil.
Clojure’s = is true when comparing immutable values that represent the same value, or when comparing mutable objects that are the identical object. As a convenience, = also returns true when used to compare Java collections against each other, or against Clojure’s immutable collections, if their contents are equal. However, there are important caveats if you use non-Clojure collections.
Clojure provides a set of alternative math operators suffixed with an apostrophe: +', -', *', inc', and dec'. These operators auto-promote to BigInt upon overflow, but are less efficient than the regular math operators. Ratio. Represents a ratio between integers. Division of integers that can’t be reduced to an integer yields a ratio, i.e. 22 ...
Put simply, Clojure implemented atop Rust! My main goals here are. Project Goals: To create a version of Clojure that gets to exist independent of a particular platform; To explore a Clojure that, being more independent, has a. Proper tail call elimination b. Conditions / Restarts c. Any other feature it might not normally be able to indulge
Clojure is not the product of traditional research and (as may be evident) writing a paper for this setting was a different and challenging exercise. I hope the paper provides some insight into why Clojure is the way it is and the process and people behind its creation and development.
However, other Clojure constructs, such as doseq do not allocate closures internally: ; This works just fine (go (doseq [c cs] (println (<! c))) Unfortunately, currently there isn’t a good way to know if a given macro will work as expected inside a go block unless one either looks at the source, or tests the code generated by the macro.
Additionally, Clojure can use any Java library via Java interop. Together, this provides a vast ecosystem of libraries at your disposal. Library search. Clojure Toolbox - categorized Clojure libs. Clojars - community repo for Clojure libs. Maven Central - searchable repo of Java and Clojure libs.
Clojure is an effort in pragmatic dynamic language design in this context. It endeavors to be a general-purpose language suitable in those areas where Java is suitable. It reflects the reality that, for the concurrent programming future, pervasive, unmoderated mutation simply has to go.
Clojure is a concise, powerful, and performant general-purpose programming language that runs on the JVM, CLR, Node.js, and modern mobile and desktop web browsers. New to Clojure and not sure where to start? Here are a few good resources to get you off on the right foot: Rich Hickey's Greatest Hits (videos) Clojure for the Brave and True
The Clojure REPL gives the programmer an interactive development experience. When developing new functionality, it enables her to build programs first by performing small tasks manually, as if she were the computer, then gradually make them more and more automated, until the desired functionality is fully programmed. When debugging, the REPL makes the execution of her programs feel tangible ...
Clojure was created by Rich Hickey and is developed by a core team of developers at Cognitect, which supports this work. The Clojure development team values a measured and thoughtful approach to language evolution with a strong emphasis on maintaining backward compatibility.
The Clojure Workshop by Joseph Fahey, Thomas Haratyk, Scott McCaughie, Yehonathan Sharvit, Konrad Szydlo Jan 29, 2020. Reactive Programming with Clojure by Konrad Szydlo, Leonardo Borges Jan 25, 2019. Elements of Clojure by Zachary Tellman Nov 30, 2018. Clojure Polymorphism by Paul Stadig Nov 15, 2019.
clojure.string Clojure String utilities It is poor form to (:use clojure.string). Instead, use require with :as to specify a prefix, e.g. (ns your.namespace.here (:require [clojure.string :as str])) Design notes for clojure.string: 1. Strings are objects (as opposed to sequences). As such, the string being manipulated is the first argument to a ...
Clojure multimethods are a simple yet powerful mechanism for runtime polymorphism that is free of the trappings of OO, types and inheritance. The basic idea behind runtime polymorphism is that a single function designator dispatches to multiple independently-defined function definitions based upon some value of the call.
ClojureBridge aims to increase diversity within the Clojure community by offering free, beginner-friendly Clojure programming workshops for underrepresented groups in tech. ClojureBridge holds free training events for women and minorities. Typically these are 1 day events hosted by one or more sponsors.
Clojure is a functional language. Functions are first-class and can be passed-to or returned-from other functions. Most Clojure code consists primarily of pure functions (no side effects), so invoking with the same inputs yields the same output.
Below is a partial list of some companies using Clojure or ClojureScript. Most of this information comes from direct contacts, presentations, or other online resources. If you would like to be added or removed from this list, please contact firstname.lastname@example.org or submit a pull request to the site repository.
An anonymous function is a function without a name. In Clojure these can be defined in two ways, fn and the literal #(… ). Creating a function with defn immediately binds it to a name, fn just creates a function.
clojure.core Available since 1.0 (and) (and x) (and x & next) Evaluates exprs one at a time, from left to right. If a form returns logical false (nil or false), and returns that value and doesn't evaluate any of the other expressions, otherwise it returns the value of the last expr. (and) returns true.
Clojure is an umbrella level project that hosts many additional libraries called Clojure contrib, which all exist under the Clojure organization on GitHub. These libraries use the same contribution model ( Contributor Agreement , license, and copyright) as Clojure itself, and a shared infrastructure maintained by the Clojure core team:
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Put simply, Clojure implemented atop Rust! For now, a Clojure interpreter implemented in Rust. The repl in action. Project Goals: To create a version of Clojure that gets to exist independent of a particular platform; To explore a Clojure that, being more independent, has a. Proper tail call elimination b. Conditions / Restarts c.