Racket

Racket(t) may refer to:

See also

Racket (programming language)

Racket (formerly named PLT Scheme) is a general purpose, multi-paradigm programming language in the Lisp-Scheme family. One of its design goals is to serve as a platform for language creation, design, and implementation. The language is used in a variety of contexts such as scripting, general-purpose programming, computer science education, and research.

The platform provides an implementation of the Racket language (including a sophisticated run-time system, various libraries, JIT compiler, and more) along with a development environment called DrRacket (formerly named DrScheme) written in Racket itself. The IDE and an accompanying programming curriculum is used in the ProgramByDesign outreach program, an attempt to turn computing and programming into "an indispensable part of the liberal arts curriculum". The core language is known for its extensive macro system which enables the creation of embedded and domain-specific languages, language constructs such as classes or modules, and separate dialects of Racket with different semantics.

Racket (crime)

A racket is a service that is fraudulently offered to solve a problem, such as for a problem that does not actually exist, that will not be put into effect, or that would not otherwise exist if the racket did not exist. Conducting a racket is racketeering. Particularly, the potential problem may be caused by the same party that offers to solve it, although that fact may be concealed, with the specific intent to engender continual patronage for this party. An archetype is the protection racket, wherein a person or group indicates that they could protect a store from potential damage, damage that the same person or group would otherwise inflict, while the correlation of threat and protection may be more or less deniably veiled, distinguishing it from the more direct act of extortion.

Racketeering is often associated with organized crime, and the term was coined by the Employers' Association of Chicago in June 1927 in a statement about the influence of organized crime in the Teamsters union.