title: Append 'List' items to StringBuilder
body: <p>I tried to append the items in a <code>List&lt;string&gt;</code> to a <code>StringBuilder</code> with LINQ:</p>
  
  <pre><code>items.Select(i =&gt; sb.Append(i + ","));
  </code></pre>
  
  <p>I found a similar question <a href="https://stackoverflow.com/questions/1708247/linq-to-append-to-a-stringbuilder-from-a-string">here</a> which explains why the above doesn't work, but I couldn't find an <code>Each</code> of <code>ForEach</code> or anything similar on <code>List</code> which I could use instead.</p>
  
  <p>Is there a neat way of doing this in a one-liner?</p>