title: How can I find a number in a string using Flex?
body: <p>I want to replace a number with a character at runtime like this:</p>
  
  <p>Input:</p>
  
  <p><code>ask 1234 question</code></p>
  
  <p>Result:</p>
  
  <p><code>ask * question</code></p>
  
  <p>What is the best way to accomplish this?</p>