clojure problem: string not in core

string manipulation is the most important element in modern programing. This is the first thing you teach to beginners, about any language.

But with clojrue, it's not core part of the language. You need to load it as a lib, or, go use Java's string stuff.

Try to tell that to beginner. You either face the immense complexity of clojure namespace , or the immense complexity of dealing with a entire complexity bag the interoperation with Java.

PS: actually, just prefix the namespace. ⁖ (clojure.string/upper-case "xyz").