JSFiddle - React, Tailwind, and code Playground

HTML

<div id="console"></div>

JavaScript

var dados = {
  "channel":
  {
    "id": 9,
    "name": "my_house",
    "description": "Netduino Plus connected to sensors around the house",
    "latitude": "40.44",
    "longitude": "-79.996",
    "field1": "Light",
    "field2": "Outside Temperature",
    "created_at": "2010-12-13T20:20:06-05:00",
    "updated_at": "2014-02-26T12:43:04-05:00",
    "last_entry_id": 6060625
  },
  "feeds":
  [
    {
      "created_at": "2014-02-26T12:42:49-05:00",
      "entry_id": 6060624,
      "field1": "188",
      "field2": "25.902335456475583"
    },
    {
      "created_at": "2014-02-26T12:43:04-05:00",
      "entry_id": 6060625,
      "field1": "164",
      "field2": "25.222929936305732"
    }
  ]
};

var con = document.getElementById('console');
for (var i = 0; i < dados.feeds.length; i++) {
	var firstKey = Object.keys(dados.feeds[i])[0];
	con.innerHTML += '<p>' + dados.feeds[i][firstKey] + '</p>';
}