title: How to remove quotes from front and end of the string Scala
body: <p>I have a dataframe where some strings contains "" in front and end of the string. </p>
  
  <p>Eg:</p>
  
  <pre><code>+-------------------------------+
  |data                           |
  +-------------------------------+
  |"john belushi"                 |
  |"john mnunjnj"                 |
  |"nmnj tyhng"                   |
  |"John b-e_lushi"               |
  |"john belushi's book"          |
  </code></pre>
  
  <p>Expected output:</p>
  
  <pre><code>+-------------------------------+
  |data                           |
  +-------------------------------+
  |john belushi                   |
  |john mnunjnj                   |
  |nmnj tyhng                     |
  |John b-e_lushi                 |
  |john belushi's book            |
  </code></pre>
  
  <p>I am trying to remove only " double quotes from the string. Can some one tell me how can I remove this in Scala ?</p>
  
  <p>Python provide ltrim and rtrim. Is there any thing equivalent to that in Scala ?</p>