title: Buffer Octet Stream in NodeJs
body: <p>I am novice in NodeJs and i have read about <code>Buffer</code> but not clear.</p>
  
  <p>Some examples:-</p>
  
  <pre><code>1) var buffer = new Buffer(12);
  2) var buffer = new Buffer([12,54,89]);
  3) var buffer = new Buffer("Confusing about Buffer", "utf-8");
  </code></pre>
  
  <p>Here my queries are,</p>
  
  <ul>
  <li>What is the Buffer and what is the way to define/implement.</li>
  <li>What is meaning of above examples. </li>
  </ul>