Implementations
The first concatenative programming language was Forth, although Joy was the first language to call itself concatenative. Other concatenative languages are Cat, Enchilada, Factor, Onyx, PostScript, RPL, Staapl, Trith and XY.
Most existing concatenative languages are stack-based; this is not a requirement and other models have been proposed. Concatenative languages are currently used for embedded, desktop, and web programming, as target languages, and for research purposes.
Most concatenative languages are dynamically typed. One exception is the statically typed Cat language.
Read more about this topic: Concatenative Programming Language