/* mostrar valores de JSON files dentro de un html */
var json = {
  "name": "John",
  "age": 30,
  "cars": [
    { "name": "Ford", "models": ["Fiesta", "Focus", "Mustang"] },
    { "name": "BMW", "models": ["320", "X3", "X5"] },
    { "name": "Fiat", "models": ["500", "Panda"] }
  ]
}
var text = "";
var i;
for (i = 0; i < json.cars.length; i++) {
  text += json.cars[i].name + "<br>";
}
document.getElementById("demo").innerHTML = text;