window：navigator 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.

只读属性 Window.navigator 会返回一个 Navigator 对象的引用，可以用于请求运行当前代码的应用程序的相关信息。

值

一个 navigator 对象。

示例

示例 1：检测浏览器并返回浏览器名称字符串

js
function getBrowserName(userAgent) {
  // 此处顺序很重要，并且对于未列出的浏览器，这可能会报错。

  if (userAgent.includes("Firefox")) {
    // "Mozilla/5.0 (X11; Linux i686; rv:104.0) Gecko/20100101 Firefox/104.0"
    return "Mozilla Firefox";
  } else if (userAgent.includes("SamsungBrowser")) {
    // "Mozilla/5.0 (Linux; Android 9; SAMSUNG SM-G955F Build/PPR1.180610.011) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/9.4 Chrome/67.0.3396.87 Mobile Safari/537.36"
    return "Samsung Internet";
  } else if (userAgent.includes("Opera") || userAgent.includes("OPR")) {
    // "Mozilla/5.0 (Macintosh; Intel Mac OS X 12_5_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36 OPR/90.0.4480.54"
    return "Opera";
  } else if (userAgent.includes("Edge")) {
    // "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299"
    return "Microsoft Edge (Legacy)";
  } else if (userAgent.includes("Edg")) {
    // "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36 Edg/104.0.1293.70"
    return "Microsoft Edge (Chromium)";
  } else if (userAgent.includes("Chrome")) {
    // "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36"
    return "Google Chrome 或 Chromium";
  } else if (userAgent.includes("Safari")) {
    // "Mozilla/5.0 (iPhone; CPU iPhone OS 15_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6 Mobile/15E148 Safari/604.1"
    return "Apple Safari";
  } else {
    return "未知";
  }
}

const browserName = getBrowserName(navigator.userAgent);
console.log(`你正在使用 ${browserName} 浏览器`);

规范

Specification
HTML Standard
# dom-navigator

浏览器兼容性

BCD tables only load in the browser