title: "Select All" on clicking Bootstrap input
body: <p>Let's say i have this input:</p>
  
  <pre><code>  &lt;li&gt;&lt;input type="text" id="elementHeight" class="form-control" placeholder="Height"&gt; &lt;/li&gt;
  </code></pre>
  
  <p>and i want to ''Select All'' in the input field when the user clicks on it. </p>