PureScript
Paradigm | Functional |
---|---|
Designed by | Phil Freeman |
First appeared | 2013 |
Stable release | |
Haskell, JavaScript |
PureScript is a
History
PureScript was initially designed by Phil Freeman in 2013. He started to work on PureScript since he wasn't satisfied by other attempts to transpile Haskell to JavaScript (e.g. using Fay, Haste, or GHCJS).[9]
Since then it has been picked up by the community and is developed on GitHub. Additional core tools developed by the community include the dedicated build tool "Pulp",[10] the documentation directory "Pursuit",[11] and the package manager "Spago"[12]
Features
PureScript features
The PureScript transpilers attempt to produce readable code, where possible. Through a simple FFI interface, it also allows the reuse of existing JavaScript[14]/C++11[15][16]/Go[17] code.
PureScript supports
PureScript supports
Examples
Here is a minimal "Hello world" program in PureScript:
module Main where
import Effect.Console (log)
main = log "Hello World!"
Here, the type of the program is inferred and checked by the PureScript transpiler. A more verbose version of the same program might include explicit type annotations:
module Main where
import Prelude
import Effect (Effect)
import Effect.Console (log)
main :: Effect Unit
main = log "Hello World!"
See also
- Elm (programming language) – Functional programming language
- Reason (programming language) – Syntax extension and toolchain for OCaml
- JS++ – Web programming language
- TypeScript – Programming language and superset of JavaScript
References
- ^ "purescript/purescript". GitHub. 3 June 2022.
- ^ "PureScript to JavaScript transpiler". GitHub. Retrieved 2023-01-22.
- ^ "PureScript to C++11 transpiler". GitHub. Retrieved 2023-01-22.
- ^ purerl - the PureScript Erlang backend, purerl, 2023-09-04, retrieved 2023-09-05
- ^ "PureScript to Go transpiler". GitHub. Retrieved 2023-01-22.
- ^ "PureScript". purescript.org. Retrieved 2019-03-14.
- ^ purescript/documentation, PureScript, 2023-02-19, retrieved 2023-02-20
- ^ Alternative backends, PureScript, 2023-02-19, retrieved 2023-02-20
- ^ "Read PureScript by Example | Leanpub". leanpub.com. Retrieved 2019-03-14.
- ^ A build tool for PureScript projects, PureScript Contrib, 2019-03-08, retrieved 2019-03-14
- ^ "Pursuit". pursuit.purescript.org. Retrieved 2019-03-14.
- ^ 🍝 PureScript package manager and build tool powered by Dhall and package-sets: spacchetti/spago, spacchetti, 2019-03-14, retrieved 2019-03-14
- ^ Documentation for the PureScript language, compiler, and tools.: purescript/documentation, PureScript, 2019-03-14, retrieved 2019-03-14
- ^ "The Foreign Function Interface". PureScript. 2015-07-15. Retrieved 2023-01-22.
- ^ "FFI". PureScript. 2019-07-26. Retrieved 2023-01-22.
- ^ C++ foreign export implementations for the standard library, PureScript, 2019-07-26, retrieved 2023-01-22
- ^ "Go foreign export implementations for the standard library". PureScript. 2020-12-13. Retrieved 2023-01-22.
- ^ purs ide: Editor and tooling support for the PureScript programming language, 2019-04-21, retrieved 2019-04-21
- ^ Implementing type directed search for PureScript, 2016-10-27
- S2CID 218480974