title: NodeJS Buffer- read little endian buffer
body: <p>I have a 256-bit long but written as a little endian:</p>
  
  <pre><code>&lt;Buffer 21 a2 bc 03 6d 18 2f 11 f5 5a bd 5c b4 32 a2 7b 22 79 7e 53 9b cb 44 5b 0e 00 00 00 00 00 00 00&gt;
  </code></pre>
  
  <p>How can I correctly print it as a hexadeciaml value?</p>
  
  <pre><code>buf.toString('hex')
  </code></pre>
  
  <p><code>buk.toString('hex').split("").reverse().join(""))</code> gives <code>0x00000000000000e0b544bcb935e79722b72a234bc5dba55f11f281d630cb2a12</code> instead of <code>0x000000000000000e5b44cb9b537e79227ba232b45cbd5af5112f186d03bca221</code></p>