title: How do I fix this '<=' is not a prefix unary operator error?
body: <p>I am getting error in the "if-else" section.</p>
  
  <p>I am doing Swift in playgrounds.</p>
  
  <pre><code>let namescore = arc4random_uniform(101)
  
  if  namescore &gt; 51{
      return "high match of \(namescore)"
  } else if  (namescore, &gt;=40 &amp;&amp; namescore, &lt;=40) {
      return "avg match of \(namescore)"
  }
  </code></pre>
  
  <blockquote>
    <p>error:'&lt;=' is not a prefix unary operator<br>
    error:'>=' is not a prefix unary operator</p>
  </blockquote>