Elm Installer
Elm is a functional programming language that compiles to JavaScript.
Head over to The Official Guide to start learning Elm!
What is this package for?
Normal installs
Use the instructions here instead.
Multiple versions
People using Elm at work may use different versions of Elm in different projects. They can run npm install elm@latest-0.19.1
in each project and use the binary at ./node_modules/.bin/elm
for compilation.
Continuous integration
This works, but there are usually faster and more reliable options:
- You can download
elm
directly from GitHub with this script. This is all thenpm
installer does, but with extra HTTP requests tonpmjs.com
servers, making it slower and adding more failure points. - Many continuous integration have ways to cache files (example) to make builds faster and more reliable.
That said, it will definitely work to use the npm
installer on CI if you prefer that option.
Install Locally
The following command should download the latest Elm 0.19.1 binary:
npm install elm@latest-0.19.1
You should be able to run ./node_modules/bin/elm --version
within your project and see 0.19.1
. Now you can compile with ./node_modules/bin/elm make src/Main.elm
and not disrupt other packages.
Use npm install elm@latest-0.19.0
or npm install elm@latest-0.18.0
for earlier versions.
Note: The latest-X.Y.Z
convention is used in case we need to publish patches for the npm
installer within a given Elm release. For example, say npm
decides that some transitive dependency is not secure. Nothing is changing about Elm or the binaries, but we need to publish a new npm
installer that fixes this issue.