title: lodash not trimming end and start
body: <p>I got an array containing strings.
  I want to make sure there are no space fillings in end or start of string, in middle is ok. </p>
  
  <p>So I've tried using lodash by doing this:</p>
  
  <pre><code>var answers = req.body.answer.split(/;,/); // req.body.answer = 'nio,9'
  answers = _.map(answers, _.trimEnd);
  answers = _.map(answers, _.trimStart);
  </code></pre>
  
  <p>The result is this:</p>
  
  <pre><code>[ 'nio       ,      9' ] // answer before trim
  [ 'nio       ,      9' ] // answer after trim
  </code></pre>
  
  <p>The wanted result is:</p>
  
  <pre><code>[ 'nio', '9']
  </code></pre>