我有5个插件/扩展Firefox, Chrome, Internet Explorer(IE), Opera和Safari。
我如何正确识别用户浏览器和重定向(一旦安装按钮已被点击)下载相应的插件?
我有5个插件/扩展Firefox, Chrome, Internet Explorer(IE), Opera和Safari。
我如何正确识别用户浏览器和重定向(一旦安装按钮已被点击)下载相应的插件?
当前回答
这结合了罗伯的原始答案和皮劳2016年的更新
var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
// Opera 8.0+ (UA detection to detect Blink/v8-powered Opera)
var isFirefox = typeof InstallTrigger !== 'undefined'; // Firefox 1.0+
var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
// At least Safari 3+: "[object HTMLElementConstructor]"
var isChrome = !!window.chrome && !isOpera; // Chrome 1+
var isIE = /*@cc_on!@*/false || !!document.documentMode;
// Edge 20+
var isEdge = !isIE && !!window.StyleMedia;
// Chrome 1+
var output = 'Detecting browsers by ducktyping:<hr>';
output += 'isFirefox: ' + isFirefox + '<br>';
output += 'isChrome: ' + isChrome + '<br>';
output += 'isSafari: ' + isSafari + '<br>';
output += 'isOpera: ' + isOpera + '<br>';
output += 'isIE: ' + isIE + '<br>';
output += 'isIE Edge: ' + isEdge + '<br>';
document.body.innerHTML = output;
其他回答
var BrowserType; (function (BrowserType) { BrowserType["OPERA"] = "Opera"; BrowserType["OPERA2"] = "OPR"; BrowserType["EDGE"] = "Edg"; BrowserType["CHROME"] = "Chrome"; BrowserType["SAFARI"] = "Safari"; BrowserType["FIREFOX"] = "Firefox"; BrowserType["UNKNOWN"] = "unknown"; })(BrowserType || (BrowserType = {})); const detectBrowser = () => { return Object.values(BrowserType).find((browser) => navigator.userAgent.indexOf(browser) != -1); }; console.log(detectBrowser());
简单的一行JavaScript代码会告诉你浏览器的名称:
function GetBrowser()
{
return navigator ? navigator.userAgent.toLowerCase() : "other";
}
不知道它是否对任何人都有用,但这里有一个变体,会让TypeScript高兴:
export function getBrowser() {
// Opera 8.0+
if ((!!window["opr"] && !!["opr"]["addons"]) || !!window["opera"] || navigator.userAgent.indexOf(' OPR/') >= 0) {
return 'opera';
}
// Firefox 1.0+
if (typeof window["InstallTrigger"] !== 'undefined') {
return 'firefox';
}
// Safari 3.0+ "[object HTMLElementConstructor]"
if (/constructor/i.test(window["HTMLElement"]) || (function(p) { return p.toString() === "[object SafariRemoteNotification]"; })(!window['safari'] || (typeof window["safari"] !== 'undefined' && window["safari"].pushNotification))) {
return 'safari';
}
// Internet Explorer 6-11
if (/*@cc_on!@*/false || !!document["documentMode"]) {
return 'ie';
}
// Edge 20+
if (!(/*@cc_on!@*/false || !!document["documentMode"]) && !!window["StyleMedia"]) {
return 'edge';
}
// Chrome 1+
if (!!window["chrome"] && !!window["chrome"].webstore) {
return 'chrome';
}
// Blink engine detection
if (((!!window["chrome"] && !!window["chrome"].webstore) || ((!!window["opr"] && !!["opr"]["addons"]) || !!window["opera"] || navigator.userAgent.indexOf(' OPR/') >= 0)) && !!window["CSS"]) {
return 'blink';
}
}
短变体(更新2020年7月10日移动浏览器检测修复)
var browser = (function() { var test = function(regexp) {return regexp.test(window.navigator.userAgent)} switch (true) { case test(/edg/i): return "Microsoft Edge"; case test(/trident/i): return "Microsoft Internet Explorer"; case test(/firefox|fxios/i): return "Mozilla Firefox"; case test(/opr\//i): return "Opera"; case test(/ucbrowser/i): return "UC Browser"; case test(/samsungbrowser/i): return "Samsung Browser"; case test(/chrome|chromium|crios/i): return "Google Chrome"; case test(/safari/i): return "Apple Safari"; default: return "Other"; } })(); console.log(browser)
打字文件版本:
export enum BROWSER_ENUM {
EDGE ,
INTERNET_EXPLORER ,
FIRE_FOX ,
OPERA ,
UC_BROWSER ,
SAMSUNG_BROWSER ,
CHROME ,
SAFARI ,
UNKNOWN ,
}
const testUserAgent = (regexp: RegExp): boolean => regexp.test(window.navigator.userAgent);
function detectBrowser(): BROWSER_ENUM {
switch (true) {
case testUserAgent(/edg/i): return BROWSER_ENUM.EDGE;
case testUserAgent(/trident/i): return BROWSER_ENUM.INTERNET_EXPLORER;
case testUserAgent(/firefox|fxios/i): return BROWSER_ENUM.FIRE_FOX;
case testUserAgent(/opr\//i): return BROWSER_ENUM.OPERA;
case testUserAgent(/ucbrowser/i): return BROWSER_ENUM.UC_BROWSER;
case testUserAgent(/samsungbrowser/i): return BROWSER_ENUM.SAMSUNG_BROWSER;
case testUserAgent(/chrome|chromium|crios/i): return BROWSER_ENUM.CHROME;
case testUserAgent(/safari/i): return BROWSER_ENUM.SAFARI;
default: return BROWSER_ENUM.UNKNOWN;
}
}
export const BROWSER: BROWSER_ENUM = detectBrowser();
export const IS_FIREFOX = BROWSER === BROWSER_ENUM.FIRE_FOX;
函数式算法,只是为了好玩:
const BROWSER = Object.entries({
"Microsoft Edge": /edg/i,
"Microsoft Internet Explorer": /trident/i,
"Mozilla Firefox": /firefox|fxios/i,
"Opera": /opr\//i,
"UC Browser": /ucbrowser/i,
"Samsung Browser": /samsungbrowser/i,
"Google Chrome": /chrome|chromium|crios/i,
"Apple Safari": /safari/i,
"Unknown": /.+/i,
}).find(([, value]) => value.test(window.navigator.userAgent)).pop();
const isChrome = /Chrome/.test(navigator.userAgent)
const isFirefox = /Firefox/.test(navigator.userAgent)