How to write a hello world in Clojure
In this tutorial, you will learn about how to write a hello world program in Clojure.
1. Create a new project
lein new helloworld2. Replacing code
Now replace the project.clj code with the below code.
project.clj
(defproject helloworld "0.1.0-SNAPSHOT"
:description "FIXME: write description"
:url "http://example.com/FIXME"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.5.1"]]
:main helloworld.core)Next, add the below code to your src/helloworld/core.clj:
(ns helloworld.core)
(defn -main
"I can say 'Hello World'."
[]
(println "Hello, World!"))3. Run the program
lein runIt will print the Hello, World! in your terminal.
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