app/assets/javascripts/m/crazy.js.coffee.erb

class <%= "CRAZY" %>
  <%(1..10).each do |p|%>
  method_<%=p%>: ->
    <%=p%>
  <%end%>

automagically ends up as

(function() {
  var CRAZY;
  CRAZY = (function() {
    function CRAZY() {}
    CRAZY.prototype.method_1 = function() {
      return 1;
    };
    CRAZY.prototype.method_2 = function() {
      return 2;
    };
    CRAZY.prototype.method_3 = function() {
      return 3;
    };
    CRAZY.prototype.method_4 = function() {
      return 4;
    };
    CRAZY.prototype.method_5 = function() {
      return 5;
    };
    CRAZY.prototype.method_6 = function() {
      return 6;
    };
    CRAZY.prototype.method_7 = function() {
      return 7;
    };
    CRAZY.prototype.method_8 = function() {
      return 8;
    };
    CRAZY.prototype.method_9 = function() {
      return 9;
    };
    CRAZY.prototype.method_10 = function() {
      return 10;
    };
    return CRAZY;
  })();
}).call(this);

Note the cascade of mime types crazy.js.coffee.erb. I’m going to use this to introspect my ActiveRecord classes and generate backbone.js classes with all boiler plate stuff filled in.