Stringify supports pretty-printing

stringify.js

var object = {
  vendorId: 6708,
  productId: 515,

  analogSticks: [
    { name: "left", x: 6, y: 7 },
    { name: "right", x: 8, y: 9 }
  ],
};

JSON.stringify(object);
//=> {"vendorId":6708,"productId":515,"analogSticks":[{"name":"left","x":6,"y":7},{"name":"right","x":8,"y":9}]}

JSON.stringify(object, null, 2);
// =>  {
// =>    "vendorId": 6708,
// =>    "productId": 515,
// =>    "analogSticks": [
// =>      {
// =>        "name": "left",
// =>        "x": 6,
// =>        "y": 7
// =>      },
// =>      {
// =>        "name": "right",
// =>        "x": 8,
// =>        "y": 9
// =>      }
// =>    ]
// =>  }