List Comprehension in Coffee Script

gistfile1.js

// Coffee script
books = [1..25]
data = (book for book in books)
console.log data

// Generated Javascript
(function() {
  var book, books, data, _i, _results;

  books = (function() {
    _results = [];
    for (_i = 1; _i <= 25; _i++){ _results.push(_i); }
    return _results;
  }).apply(this);

  data = (function() {
    var _j, _len, _results1;
    _results1 = [];
    for (_j = 0, _len = books.length; _j < _len; _j++) {
      book = books[_j];
      _results1.push(book);
    }
    return _results1;
  })();

  console.log(data);

}).call(this);