url.origin
获取网址的源的只读的序列化。
const myURL = new URL('https://example.org/foo/bar?baz');
console.log(myURL.origin);
// 打印 https://example.org
const idnURL = new URL('https://測試');
console.log(idnURL.origin);
// 打印 https://xn--g6w251d
console.log(idnURL.hostname);
// 打印 xn--g6w251d
Gets the read-only serialization of the URL's origin.
const myURL = new URL('https://example.org/foo/bar?baz');
console.log(myURL.origin);
// Prints https://example.org
const idnURL = new URL('https://測試');
console.log(idnURL.origin);
// Prints https://xn--g6w251d
console.log(idnURL.hostname);
// Prints xn--g6w251d