July 2019
Intermediate to advanced
310 pages
7h 26m
English
Content preview from Programming Elm
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Install an Older Package Version
The elm install command only installs the latest version of a package. To install an older version of a package, you must change the desired version inside elm.json.
Let’s say you installed elm/http with elm install. It installed version 2.0.0, but you wanted to use version 1.0.0. You can open your elm.json in your editor and change the version of elm/http located in the dependencies.direct field to 1.0.0 like so:
| | { |
| | "type": "application", |
| | "source-directories": [ |
| | "src" |
| | ], |
| | "elm-version": "0.19.0", |
| | "dependencies": { |
| | "direct": { |
| | "elm/browser": "1.0.1", |
| | "elm/core": "1.0.2", |
| | "elm/html": "1.0.0", |
| » | "elm/http": "1.0.0", |
| | "elm/json": "1.1.3" |
| | }, |
| | "indirect" |
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.