title: How to remove \n in a string?
body: <p>How to remove <code>\n</code> in a string?</p>
  
  <p>E.g. </p>
  
  <ol>
  <li>Input : <code>string s = "\n1234"</code></li>
  <li>Output I want (but I can't achieve) : <code>string s = "1234"</code></li>
  </ol>
  
  <p>What I've tried (and failed) :</p>
  
  <ol>
  <li><code>s.Remove(0,1);</code></li>
  <li><code>s.Trim();</code></li>
  </ol>
  
  <p>Additional notes :</p>
  
  <p>I think <code>\n</code> counts as 1 <code>char</code> because, when I tried :</p>
  
  <pre><code>bool b = s[0]=='\n';
  </code></pre>
  
  <blockquote>
    <p>b = true.</p>
  </blockquote>