【javascript】urlの文字列編集

コード

var url1 = "http://192.168.55.33/nnnnnn/aaaaaaa";
 var match = url1.match(/\/\/[^/]+(\/.*)/);
 console.log(match ? match[1] : url1);

  var url2 = "https://192.168.55.33/aaa/";
   var match = url2.match(/\/\/[^/]+(\/.*)/);
    console.log(match ? match[1] : url2);


var url3 = "http://192.168.55.33";
 var match = url3.match(/\/\/[^/]+(\/.*)/);
 console.log(match ? match[1] : url3);

const url1 = new URL("http://192.168.55.33/nnnnnn/aaaaaaa");
console.log(url1.pathname);

const url2 = new URL("https://192.168.55.33/aaa/");
console.log(url2.pathname);

const url3 = new URL("http://192.168.55.33");
console.log(url3.origin);

const url4 = new URL("http://192.168.55.33/nnnnnn/aaaaaaa");
console.log(url4.host);

結果

"/nnnnnn/aaaaaaa"
"/aaa/"
"http://192.168.55.33"
"192.168.55.33"

参考

URL {
  href: 'https://example.com/path?param1=value1&param2=value2',
  origin: 'https://example.com',
  protocol: 'https:',
  username: '',
  password: '',
  host: 'example.com',
  hostname: 'example.com',
  port: '',
  pathname: '/path',
  search: '?param1=value1&param2=value2',
  searchParams: URLSearchParams { 'param1' => 'value1', 'param2' => 'value2' },
  hash: ''
}