On Windows the Oracle Java installer sets Java up in some funny way so that the Getting Started REPL fails to start. (You will want to install these tools later, of course.) The only prerequisite here is that you have Java installed. welcome_to_clojure.clj - The very basics of the Clojure language.hello_paredit.clj - A super brief intro to Calva structural editing.hello_repl.clj – The basics of how to evaluate code in Calva. ![]() It will open up a three files in a temporary directory, and start and connect a REPL. If you are new to Calva, a good place to start is using the command Fire up the ”Getting Started” REPL. If you like, you can defer installing anything at all and still get started with Calva (not kidding). Three clicks will have you running Calva in your browser with the REPL ready to serve. If so you should definitely check the Get Started with Clojure guide on this site. You might however, not want to start with installing the right version of Java and such to run the guide. The ”Getting Started” REPL below introduces you to Clojure as well as to Calva. The demo tells you about the command (and some about the Clojure Beginner's material that it makes available). But before you run over there, you might want to familiarize yourself with Calva a bit, which you can do without a project. If you have a Clojure or ClojureScript project, you will be interested in how to get Calva connected to the REPL of your project. The easiest way to do that is to start VS Code and search for Calva in the VS Code Extension pane, then click Install. Here's an excellent intro: Getting Started with VS Code
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