ClojureScript code to print squares of first 10 numbers.

10squares.cljs

(ns example)
(defn ^:export square [n]
  (for [x (range n)]
    (* x x)))
(.write js/document
  (reduce str
    (interpose ","
      (square 10)))) 

10squares.cljs.js

goog.provide('example');
goog.require('cljs.core');
example.square = (function square(n) {
  var iter__378__auto____2376 = (function iter__2372(s__2373) {
    return (new cljs.core.LazySeq(null, false, (function () {
          var s__2373__2374 = s__2373;
          while (true) {
            if (cljs.core.truth_(cljs.core.seq.call(null, s__2373__2374))) {
              var x__2375 = cljs.core.first.call(null, s__2373__2374);
              return cljs.core.cons.call(null, (x__2375 * x__2375), iter__2372.call(null, cljs.core.rest.call(null, s__2373__2374)));
            } else {
              return null;
            }
            break;
          }
        })));
  });
  return iter__378__auto____2376.call(null, cljs.core.range.call(null, n));
});
goog.exportSymbol('example.square', example.square);
document.write(cljs.core.reduce.call(null, cljs.core.str, cljs.core.interpose.call(null, ",", example.square.call(null, 10))));