title: Regex to match 1 but not 10,11,12, etc or 21, 31, etc
body: <p>I'm trying to find the proper regex to match:</p>
  
  <p><code>?page=1</code></p>
  
  <p>but I don't want to match <code>?page=10</code> or <code>?page=11</code> or <code>?page=12</code> ..etc to <code>?page=19</code></p>
  
  <p>and I don't want to match <code>?page=21</code> or <code>?page=31</code> ...etc</p>
  
  <p>I just want to be able to match <code>?page=1</code></p>
  
  <p>I've tried <code>?page=1[^0123456789]</code>  but it doesn't seem to be working for me.</p>