Preparation code

<script>

function charAt(s) {
  return s.charAt(s.length - 1) === '#';
}

function regex(s) {
  return /#$/.test(s);
}

var POUND_END_RE = /#$/;
function regex_cache(s) {
  return POUND_END_RE.test(s);
}

</script>

Test runner

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charAt('foobar');
charAt('http://www.regular-expressions.info/refadv.html');
charAt('https://a.alipayobjects.com/ar/alipay.auth.checkcode-1.1.js#');
 

regex('foobar');
regex('http://www.regular-expressions.info/refadv.html');
regex('https://a.alipayobjects.com/ar/alipay.auth.checkcode-1.1.js#');
 

regex_cache('foobar');
regex_cache('http://www.regular-expressions.info/refadv.html');
regex_cache('https://a.alipayobjects.com/ar/alipay.auth.checkcode-1.1.js#');
 

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by lifesinger on 13th June 2012
• Revision 2: published on 16th January 2013

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