title: Check if multiple keys exists in json object
body: <p>I am trying to validate the request object to check if specific keys exist in the object or not. I've tried <code>lodash</code>'s <code>has()</code> function, but it seems that <code>_.has()</code> checks nested JSON. Javascript's <code>.hasOwnProperty()</code> takes one key at a time. Is it possible to check an array of keys within a plain JSON object? </p>
  
  <p>The object I am trying to check is</p>
  
  <pre><code> {
      "name": "admin@test.org",
      "oldPassword": "1234",
      "newPassword": "12345"
  }
  </code></pre>