title: Regex match greater than or less than symbol followed by any numbers
body: <p>I want to match on <code>&gt;21</code> or <code>&gt;2</code> or <code>&gt;0</code> or <code>&lt;12</code> or <code>&lt;45</code> , you get the idea.</p>
  
  <p>I tried <code>myString.match(/^&gt;&lt;:\d+$/)</code> but it is wrong. What should i use for this case?</p>