title: How do I create an NSArray with string literals?
body: <p>I'm attempting to create an NSArray with a grouping of string literals, however I get the compile error "Initializer element is not constant".</p>
  
  <pre><code>NSArray *currencies = [NSArray arrayWithObjects:@"Dollar", @"Euro", @"Pound", nil];
  </code></pre>
  
  <p>Could someone point out what I'm doing wrong, and possibly explain the error message?</p>