title: How to document dart functions/constructors parameters?
body: <p>With dart it is possible to prefix class/function definition by a commentary so that the analyzer will interpret it as documentation:</p>
  
  <pre><code>/// Some documentation for [Foo]
  class Foo {
  
  }
  </code></pre>
  
  <p>But how can I achieve the same behavior, with parameters instead?</p>
  
  <p>I tried the following:</p>
  
  <pre><code>void myFunction(
   /// Some parameter documentation
   String parameter,
  ) {
  
  }
  </code></pre>
  
  <p>But this doesn't work.</p>
  
  <hr>
  
  <p>However, it seems possible because <code>dartanalyzer</code> <em>do</em> contain a property on <code>ParameterElement</code> for documentation. </p>