title: How to clear text in element by jQuery?
body: <p>Current I using jQuery <code>append()</code> method to add in text in html element.</p>
  
  <p>The code fragment as below:</p>
  
  <pre><code>$(".email-address td:nth-child(1)").append("Hello");</code></pre>
  
  <p>How can I clear the text I append previously?</p>
  
  <p>Thank you in advanced.</p>