Factor (programming language)

Factor
Paradigmmulti-paradigm: concatenative (stack-based), functional, object-oriented
DeveloperSlava Pestov
First appeared2003
Stable release
0.99 / August 24, 2023 (2023-08-24)
Typing disciplinestrong, dynamic
OSWindows, macOS, Linux
LicenseBSD license
Websitefactorcode.org
Influenced by
Joy, Forth, Lisp, Self

Factor is a stack-oriented programming language created by Slava Pestov. Factor is dynamically typed and has automatic memory management, as well as powerful metaprogramming features. The language has a single implementation featuring a self-hosted optimizing compiler and an interactive development environment. The Factor distribution includes a large standard library.