Select the ingredients you don’t want from a list of options and hit the submit button. The program will only show you pizzas with ingredients you want.
The script uses a plain vanilla
XMLHttpRequest to bring the pizza information from a JSON file. They iterates over all pizzas and all ingredients in a pizza setting the property “wanted” to false if the pizza contains any ingrediente selected in the not-wanted list.
Finally, the script displays only the pizzas containing ingredients you want.