Clojure is a dynamic, functional, homoiconic, open source
programming language that targets the Java Virtual Machine (and the
of the Lisp programming language. Clojure programs are composed of
expressions and written in terms of abstractions.
Clojure is designed to be a general-purpose 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, it compiles directly to JVM bytecode, yet
remains completely dynamic. Every feature supported by Clojure is
supported at runtime.
This programmming language provides easy access to the Java
frameworks, with optional type hints and type inference, to ensure that
calls to Java can avoid reflection.
Clojure is designed to be a hosted language, sharing the JVM
type system, GC, threads etc.
Clojure requires only Java 1.5 or greater, plus the Clojure
JAR file itself.
- Compiles all functions to JVM bytecode
- Tight Java integration: By compiling into JVM Byte code,
Clojure applications can be easily packaged and deployed to JVMs and
application servers without added complexity. The language also
provides macros which make it simple to use existing Java APIs.
Clojure's data structures all implement standard Java Interfaces,
making it easy to run code implemented in Clojure from Java
- Dynamic development with a read-eval-print loop. Compiling
ahead-of-time is possible, but not required. Clojure has
arbitrary precision integers, strings, ratios, doubles, characters,
- Functions as first-class objects
- Emphasis on recursion and higher-order functions instead of
- Lazy sequences
- Provides a rich set of immutable, persistent data
structures (including hashmaps, sets and lists)
- Atoms provide a way to manage shared, synchronous,
- Concurrent programming through software transactional
memory, an agent system, and a dynamic var system
- Full support for JVM primitive values by default, allowing
high performance, idiomatic Clojure code for numeric applications
- Multimethods to allow dynamic dispatch on the types and
values of any set of arguments (cf. the usual object-oriented
polymorphism which dispatches on the type of what is effectively the
first method argument)
- Sophisticated macro system which allows the compiler to be
extended by user code
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Last Updated Saturday, September 14 2013 @ 04:58 AM EDT