It works fine when I do the following with just a query and an array named selected = [“Vegetarian”] for complex search:

return $http.get("https://spoonacular-recipe-food-nutrition-v1.p.mashape.com/recipes/searchComplex?addRecipeInformation=false", 
							{params: {'query': query, 'diet' : selected }}).then(
			function(payload) {
				var recipes = payload.data;
				return recipes;
			}

However, when I try to pass in more than one selected diet (for example when selected = [“Vegetarian”, “Vegan”]) the results don’t change and I can tell from the results that they are not vegan. I understand that the URL has to become …&diet=vegetarian%2C+vegan … but I’m not sure how to turn my array of string into that. Thanks!