title: Delphi isNumber
body: <p>Is there a method in Delphi to check if a string is a number without raising an exception?</p>
  
  <p>its for int parsing.</p>
  
  <p>and an exception will raise if one use the </p>
  
  <pre><code>try
    StrToInt(s);
  except
    //exception handling
  end;
  </code></pre>