function changeUrlEnd(url, newEnd) { // Create an HTML anchor element to parse the URL var parser = document.createElement('a'); parser.href = url; // Modify the path with the new end var path = parser.pathname.replace(/\/$/, '') + '/' + newEnd; // Rebuild the URL with the modified path var modifiedUrl = parser.protocol + '//' + parser.hostname + path; // Add query string and fragment if present if (parser.search) { modifiedUrl += parser.search; } if (parser.hash) { modifiedUrl += parser.hash; } return modifiedUrl; } // Example usage var originalUrl = "https://example.com/some/path/page.html"; var newEnd = "new-page.html"; var modifiedUrl = changeUrlEnd(originalUrl, newEnd); console.log("Original URL:", originalUrl); console.log("Modified URL:", modifiedUrl);