Get latest docs link bookmarklet.js

(function openLatestPageVersion() {
	var originalURL, pageNameIndex, pageNameEndIndex, pageName, latestURL;
	originalURL = location.href;
	if (!originalURL.toString().includes('docs.servicenow.com')) {
		alert('This does not appear to be a ServiceNow Docs page. This button only works for pages on docs.servicenow.com.');
		return;
	}
	pageNameIndex = (originalURL.indexOf('/concept/') + 9);
	pageNameEndIndex = (originalURL.indexOf('.html', pageNameIndex) + 5);
	pageName = originalURL.substring(pageNameIndex, pageNameEndIndex);
	latestURL = 'https://docs.servicenow.com/csh?topicname=' + pageName + '&version=latest';
	navigator.clipboard.writeText(latestURL);
	alert('Latest page URL copied to clipboard.\nNavigating to latest page version.');
	location.href = latestURL;
})();

/* "Compiled" code that's actually in the bookmarklet below:
(function(){var a=location.href;if(a.toString().includes("docs.servicenow.com")){var b=a.indexOf("/concept/")+9;var c=a.indexOf(".html",b)+5;a="https://docs.servicenow.com/csh?topicname="+a.substring(b,c)+"&version=latest";navigator.clipboard.writeText(a);alert("Latest page URL copied to clipboard.\nNavigating to latest page version.");location.href=a}else alert("This does not appear to be a ServiceNow Docs page. This button only works for pages on docs.servicenow.com.")})(); 
*/

Hey Tim, this is really useful for me but it doesn't work if the docs URL doesn't contain the string '/concept/'

For example this URL fails and bombs: https://docs.servicenow.com/bundle/tokyo-servicenow-platform/page/product/csdm-implementation/task/csdm-enable-tso.html

So, I added a condition to handle it:
https://gist.github.com/Hoptimal/3339d1671d30940b9f793f996c2f658b
Hope it helps?