Nu is an interpreted

object-oriented programming Object-oriented programming (OOP) is a programming paradigm based on the concept of '' objects''. Objects can contain data (called fields, attributes or properties) and have actions they can perform (called procedures or methods and impl ...

language, with a

Lisp Lisp (historically LISP, an abbreviation of "list processing") is a family of programming languages with a long history and a distinctive, fully parenthesized Polish notation#Explanation, prefix notation. Originally specified in the late 1950s, ...

-like syntax, created by Tim Burks as an alternative scripting language to program OS X through its Cocoa

application programming interface An application programming interface (API) is a connection between computers or between computer programs. It is a type of software Interface (computing), interface, offering a service to other pieces of software. A document or standard that des ...

(API). Implementations also exist for

iPhone The iPhone is a line of smartphones developed and marketed by Apple that run iOS, the company's own mobile operating system. The first-generation iPhone was announced by then–Apple CEO and co-founder Steve Jobs on January 9, 2007, at ...

and

Linux Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...

. The language was first announced at C4, a conference for indie Mac developers held in August 2007.

Example code

This Nu code defines a simple

complex number In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted , called the imaginary unit and satisfying the equation i^= -1; every complex number can be expressed in the for ...

s class. (class Complex is NSObject (ivar (double) real (double) imaginary) (- initWithReal:(double) x imaginary:(double) y is (super init) (set @real x) (set @imaginary y) self)) The example is a basic definition of a complex number: it defines the instance variables, and a method to initialize the object. It shows the similarity between the code in Nu and the equivalent in

Objective-C Objective-C is a high-level general-purpose, object-oriented programming language that adds Smalltalk-style message passing (messaging) to the C programming language. Originally developed by Brad Cox and Tom Love in the early 1980s, it was ...

; it also shows the similarity with

Ruby Ruby is a pinkish-red-to-blood-red-colored gemstone, a variety of the mineral corundum ( aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called sapph ...

. (unless @prefix (set @prefix "#..")) (unless @icon_files (set @icon_files (array "#/share/nu/resources/nu.icns"))) This sample, from the ''nuke'' tool bundled with Nu, also shows the influence of

, and

in the design of the language.

References

External links

* * {{github, programming-nu/nu, Nu - Git repository Lisp programming language family Class-based programming languages Free and open source compilers Procedural programming languages Object-oriented programming languages Programming languages created in 2007

Example code

See also

References

External links