title: What is the meaning of the word "Append"
body: <p>I'm in the middle in studying some code and I encountered this word &quot;Append&quot; and I don't understand what it does.</p>
  <h3>Code:</h3>
  <pre><code>public static void appendData(string data)
      {
          if (isRecording) sb.Append(data + Environment.NewLine);
      }
  </code></pre>
  <p>What does append mean?</p>