Css ninja

function parseProtocol(url) {
  const parsedURL = /^(\w+)\:\/\/([^\/]+)\/(.*)$/.exec(url);
  if (!parsedURL) {
    return false;
  }
  console.log(parsedURL);
  // ["https://developer.mozilla.org/en-US/docs/Web/JavaScript",
      "https", "developer.mozilla.org", "en-US/docs/Web/JavaScript"]

  const [, protocol, fullhost, fullpath] = parsedURL;
  return protocol;
}

console.log(parseProtocol('https://developer.mozilla.org/en-US/docs/Web/JavaScript'));
// "https"

Source: developer.mozilla.org

Similar codes

54 votes193 views6 answers
Css ellipsis
CSS
11 votes187 views2 answers
Css line-clamp
CSS
74 votes237 views6 answers
Flex css
CSS
4 votes194 views1 answer
Make text bigger html5
CSS
0 vote197 views1 answer
Añadir hojas css externas a wordpress
CSS
0 vote199 views1 answer
Break table for printing
CSS
2 votes213 views2 answers
Mongoose populate selected fields
CSS
0 vote203 views1 answer
Flex-wrap#verhindert auslaufen aus container
CSS
2 votes189 views1 answer
Div not larger than its content
CSS
1 vote202 views1 answer
Css @media measurements
CSS