主要代码

/**
 * 获取浏览器信息
 * @returns {{ name:"Edge"|"Edge(Chromium)"|"Internet Explorer"|"Chrome"|"Safari"|"Firefox"|"unknow",version:""}} 
 */
function BrowserInfo() {
    let userAgent = self.navigator.userAgent;
    if (/edge\/([\d\.]+)/i.exec(userAgent)) return { name: "Edge", version: /edge\/([\d\.]+)/i.exec(userAgent)[1] }
    if (/edg\/([\d\.]+)/i.exec(userAgent)) return { name: "Edge(Chromium)", version: /edge\/([\d\.]+)/i.exec(userAgent)[1] }
    if (/msie/i.test(userAgent)) return { name: "Internet Explorer", version: /msie ([\d\.]+)/i.exec(userAgent)[1] }
    if (/Trident/i.test(userAgent)) return { name: "Internet Explorer", version: /rv:([\d\.]+)/i.exec(userAgent)[1] }
    if (/chrome/i.test(userAgent)) return { name: "Chrome", version: /chrome\/([\d\.]+)/i.exec(userAgent)[1] }
    if (/safari/i.test(userAgent)) return { name: "Safari", version: /version\/([\d\.]+)/i.exec(userAgent)[1] }
    if (/firefox/i.test(userAgent)) return { name: "Firefox", version: /firefox\/([\d\.]+)/i.exec(userAgent)[1] }
    return { name: "unknow" }
}

H5 获取浏览器内核及版本