title: Substring until find the number
body: <p>I have a string <code>LCD32W58</code>. In this string I want substring until I get number<br>
  e.g. <code>LCD32W58 --&gt; LCD</code></p>
  
  <p>If the string contains numeric at beginning then I want numbers until character start<br>
  e.g. <code>55LM9600 --? 55</code></p>