URL：protocol 属性

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

备注： 此特性在 Web Worker 中可用。

URL 接口的 protocol 属性是代表 URL 的协议方案的字符串，包括最后的 ':'。

值

字符串。

const url = new URL(
  "https://developer.mozilla.org/zh-CN/docs/Web/API/URL/protocol",
);
console.log(url.protocol); // 输出 "https:"

Specification
URL # dom-url-protocol