title: What is the equivalent data type for byte in iOS swift?
body: <p>In Java we have data type called <code>byte</code> but in Swift there is no <code>byte</code> data type available.</p>
  
  <p>In the example below I typecasted the ASCII (0xAF = 175) value by using <code>byte</code> data type.</p>
  
  <pre><code>byte abyte = (byte) 0xAF;
  </code></pre>
  
  <p>And the result is <code>abyte= -89</code></p>
  
  <p>How do I acheive this in Swift?</p>