title: delete whitespace from the end of string in dart
body: <p>please I want to know how to delete whitespaces from the end of string in dart .
  ex :</p>
  
  <pre><code>String name ="(  Sana .  Harun  )";
  </code></pre>
  
  <p>when I use this code </p>
  
  <pre><code>print(sana.replaceAll(new RegExp(r"\s+\b|\b\s"),""));
  </code></pre>
  
  <p>it just delete from the beggining and not from the end , and print Like this :<strong>(Sana.Harun )</strong> .. there is a space between Harun and ) .
  I want to delete the space between <strong>Harun</strong> and <strong>)</strong> </p>
  
  <p>Can any one help me , please ?</p>