gistfile1.txt

map = function map() {
      emit(this.type, {productColor :[this.color]});
}

reduce = function reduce(key, values) {
          var colors  = [];

          var results = { colors:[] };
   
    values.forEach(function(value){
   		value.productColor.forEach(function(colorValue){
   			colors.push(colorValue);
   		});
   });

  results.colors = colors;

  return results;
}