This is a project for the Twig The Code codecamp 2024! The repository offers the skeleton, and some tasks how to make the calculator better! :-)

1. Make sure you have the following installed:

• JDK 1.7 or newer, please have a newer
• Leiningen (https://leiningen.org/)
• Latest Node.js (https://nodejs.org/en/download/package-manager)

2. Do one of the following:

• Hardest but maybe most fun path: Build everything yourself by starting from scratch. Create a new Leinigen project with lein new reagent-frontend calculator-project (https://github.com/reagent-project/reagent).
• Medium path: Clone this repository (branch "main") so you get the rough skeleton to add functions to.
• Easy path: Clone this repository (branch "add") so you get the number adding solution ready.

Note that there are no wrong or right solutions in making this work! :-)

1. Run npm install
2. Run npx shadow-cljs watch app
3. Then connect your IDE to the ClojureScript REPL.

The application is designed to run in localhost:3001, to avoid possible conflicts with other local web applications which normally use port 3000. This is set in shadow-cljs.edn.

The main code to modify is in the src/calculator/core.cljs -namespace. This is where you start your journey and write the magic! :-)

This base skeleton was created with Leiningen using the command above (lein new reagent-frontend twig-the-calculator), so we have most of the setup ready without any work.

Under "public" folder We have the following items:

• index.html that pretty much just loads the JavaScript we write. ("JavaScript?", you wonder? ClojureScript gets compiled into JavaScript!)
• Folder for our css-files, currently holding only one, "site.css".
• Folder for compiled JavaScript.

Under "src"-folder we have the source codes. Currently there are two files:

• user.clj, which was brought here when the application was initialized.
• core.cljs, which contains the code for the calculator.

This repository has a few docs to help you onward:

1. The very basics of Clojure syntax. Mostly ripped from ClojureBridge (FI) documentation, this file is a good place to start: basics.clj

2. A list of work to do! Of course you don't need to follow this at all, you can just go and create your own flow. But this might be useful ;-) TODO.md

3. A helper namespace. Here I have tried to gather all the "calculator-specific" funtions and things, that aren't covered anywhere else: helper.cljs

4. Finally, links. Here you can find more info about Clojure, where to learn more and where to meet like-minded Clojurists :-) Some links are useful with this project too! links.md

npx shadow-cljs release app