title: Numbers from string with javascript
body: <pre><code>candy 5.5, icecream 3.4, something valuable 1,185.5*2
  </code></pre>
  
  <p>Im using <code>.</code> and <code>,</code> for separators specifically.
  im need to get from this string </p>
  
  <blockquote>
    <p>var sum = 5.5 + 3.4 + 1185.5*2</p>
  </blockquote>