title: Separate alphabetic characters from a string with javascript
body: <p>I am working on a javascript project and got an issue. <br>
  I have values like this: <code>1231+, 83749M, 123199B</code>
  I can get the numeric values/number only by doing this:</p>
  
  <pre><code>var theNumber = parseInt(1231+);
  </code></pre>
  
  <p>But how can I get the trailing characters like: <code>+, M, B</code>? I can't use substring because there can be more than one character. But characters will be always at the trail.</p>