Handlebar date formatter helper

dateFormatter.js

/** 
 * Date formatting helper.
 *
 * Date helper takes a SC.DateTime and return a formatted string based on the format
 * parameter. If no format is given, it uses %c as default.
 *
 * @param format a format string
 */
Handlebars.registerHelper('date', function(path, block) {
  if (path) {
    var date = block.contexts[0].getPath(path);
    var attrs = block.hash;
    var format = "%c";

    // if a format is provided, use it.
    if (attrs && attrs.format) {
      format = attrs.format;
    }

    // make sure the date is of type SC.DateTime
    if (date && SC.kindOf(date,SC.DateTime)) {
      return date.toFormattedString(format);
    } else if (SC.none(date)) {
      console.log('date helper is expecting a SC.DateTime object, Null or undefined');
    } else {
      console.log('date helper is expecting a SC.DateTime object', date);
    } 
  }
  return "";
});