title: Which value will be sent by <textarea> and why?
body: <pre><code>&lt;form&gt;
  &lt;textarea name="test" value="no"&gt;
  hi
  &lt;/textarea&gt;
  &lt;input type="submit" /&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>hi or no,and reason?</p>
  
  <p>I ask this question because I see javascript editors use <code>textarea.value = html;</code> to restore the content when submit,why they do this if value attribute is useless?</p>