// Here's the explanation of the challenge -- when you're done reading it, // click on `main.js` above to get started with the challenge! // Here at Nirvana Burgers, our burgers are very simple, but delicious -- // and yet, our new chef keeps messing them up somehow! We don't have time // for another metaphysical kitchen debate on what constitutes a proper // burger, so we'll have to settle the matter with code. // ## Description // In this challenge, you will write a `isProperBurger` function that receives // a list (array) as an argument. Each element of the list is a string // containing the name of an ingredient. Together, the list represents the // whole stack of ingredients in the burger, ordered from bottom to top -- // in the order you'd put them on the plate. // For example, for a simple cheese burger, your function could be invoked // like: // isProperBurger( // ["bread", "patty", "cheese", "bread"]) // Your function should return a boolean (`true` or `false`) that represents // whether the burger is properly made. Here's all you need to know about the // art of making proper burgers: // - A burger always starts and ends with `"bread"`. There should not be // bread anywhere else in the burger. // - There has to be **at least one** `"patty"` **in between** the two pieces // of bread. If there's no patty, then it's not a burger, it's just a pile of // bread. // There cannot be `"cheese"` under the patties. Cheese always goes on top // (that is, on the list, it must appear _after_ the patties) // Our burgers really are simple -- you can be assured that every element in // the list of ingredients will be one of the ingredients mentioned above.