Determining if all attributes on a javascript object are null or an empty string

Question

What is the most elegant way to determine if all attributes in a javascript object are either null or the empty string? It should work for an arbitrary number of attributes

Answer 1

Based on adeneo's answer, I created a single line condition. Hope it will be helpful to someone.

var test = {
  "email": "test@test.com",
  "phone": "1234567890",
  "name": "Test",
  "mobile": "9876543210",
  "address": {
      "street": "",
      "city": "",
      "state": "",
      "country": "",
      "postalcode": "r"
  },
  "website": "www.test.com"
};

if (Object.keys(test.address).every(function(x) { return test.address[x]===''||test.address[x]===null;}) === false) {
   console.log('has something');
} else {
   console.log('nothing');
}

You can test it https://jsfiddle.net/4uyue8tk/2/