LFE comes with a powerful REPL, supporting interactive development (including writing macros!) as well as running scripts or even evaluating arbitrary LFE code via the command line. lfe> (== 42 #b101010) true lfe> (integer_to_list 42 2) "101010" lfe> #\a 97 lfe> "regular string" "regular string" lfe> #"binary string" #"binary string" Note that in LFE and Erlang a string is really just a list of in