title: How to duplicate repeat items inside a dart list?
body: <p>My intention is that i want say  5 instances of an class inside a list</p>
  
  <pre><code>final List&lt;Ball&gt; _ballList =[Ball(),Ball(),Ball(),Ball(),Ball(),]
  </code></pre>
  
  <p>instead of that I want something like</p>
  
  <pre><code>final List&lt;Ball&gt; _ballList =[Ball() * 5]
  </code></pre>