I seem to recall seeing (possibly in the source) that the idea was that ECMAchine would overload '+' so that it could be used for string concatenation. If that's the case, it looks like it might need a tweak:
ecmachine:/ guest$ (+ "Hello, " "World")
[USER]: undefined: Hello is not defined
I seem to recall seeing (possibly in the source) that the idea was that ECMAchine would overload '+' so that it could be used for string concatenation. If that's the case, it looks like it might need a tweak: