Java Script - Extract number from string
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/1849149/how-might-i-extract-the-number-from-a-number-unit-of-measure-string-using-java">How might I extract the number from a number + unit of measure string using JavaScript?</a>  </p>
</blockquote>



<p>How to extract number from string like this in JS.
String: "Some_text_123_text" -> 123</p>
