How to iterate through nested objects in JS

Question

Ok I\'m stumped on this one. I need to iterate through these so I can make a listing by the category so something like

Business Books

Book 1

Answer 1

Good idea is to learn how to do it without jQuery first.

for(var category in window.books) {
  if(window.books.hasOwnProperty(category)) {
    console.log(category); // will log "Business Books" etc.
    for (var i = 0, j = window.books[category].length; i < j; i++) {
      console.log("Title: %s, Description: %s", window.books[category][i].Title, window.books[category][i].Description);
    }
  }
}

Then you can use $.each().