JAVASCRIPT

js detect link in string

function replaceURLs(message) {
  if(!message) return;
 
  var urlRegex = /(((https?://)|(www.))[^s]+)/g;
  return message.replace(urlRegex, function (url) {
    var hyperlink = url;
    if (!hyperlink.match('^https?://')) {
      hyperlink = 'http://' + hyperlink;
    }
    return '<a href="' + hyperlink + '" target="_blank" rel="noopener noreferrer">' + url + '</a>'
  });
}
 
replaceURLs("Visit www.cluemediator.com and subscribe us on https://www.cluemediator.com/subscribe for regular updates.")
// Output: Visit <a href="http://www.cluemediator.com" target="_blank" rel="noopener noreferrer">www.cluemediator.com</a> and subscribe us on <a href="https://www.cluemediator.com/subscribe" target="_blank" rel="noopener noreferrer">https://www.cluemediator.com/subscribe</a> for regular updates.