To a great extent the previous items are intended to convince you to give Clojure a try/orient you before you start typing in a REPL.
Learning a functional language is not necessarily hard but many people say it's harder than programmers who are experienced in imperative programming expect. The latter are used to picking up new imperative languages and the change to the functional paradigm is not as easy. On the other hand, the more scars they have from side effect induced bugs the more they appreciate it.
What you're asking wasn't the intended scope of my comment, but it is covered by the 4th item: http://en.wikibooks.org/wiki/Clojure_Programming, specifically: http://en.wikibooks.org/wiki/Clojure_Programming/Getting_Sta...
To a great extent the previous items are intended to convince you to give Clojure a try/orient you before you start typing in a REPL.
Learning a functional language is not necessarily hard but many people say it's harder than programmers who are experienced in imperative programming expect. The latter are used to picking up new imperative languages and the change to the functional paradigm is not as easy. On the other hand, the more scars they have from side effect induced bugs the more they appreciate it.