title: Positive number validation in jquery
body: <p>I have used an expression for validating a positive number as follows:</p>
  
  <pre><code>^\d*\.{0,1}\d+$
  </code></pre>
  
  <p>when I give it an input of -23, it will mark input as negative, but when I give it an input of +23, it will mark it as invalid number!</p>
  
  <p>what is the problem?</p>
  
  <p>Can anyone give a solution that With +23 it will return (positive)?</p>