title: Get html input type value in lightning JS controller
body: <p>I am stuck with one issue regarding lightning components, I am using </p>
  
  <p><code>&lt;input type="date" aura.id="Wellness Visit" class="inpText" format="MM/dd/yyyy" value="{!v.visitDate}" /&gt;</code> element</p>
  
  <p>Calendar is appearing but not able to get the value in controller.</p>
  
  <pre><code>var inputDate = component.find("Wellness Visit").get("v.value"); 
  console.log('*****inputDate****'+inputDate); 
  </code></pre>
  
  <p>Getting undefined in the log</p>
  
  <p>Please suggest any other way i can get the html elament value.</p>
  
  <p>Thanks in advance!</p>