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
在这里您可以找到它正在运行的浏览器。
function isValidBrowser(navigator){
var isChrome = navigator.indexOf('chrome'),
isFireFox= navigator.indexOf('firefox'),
isIE = navigator.indexOf('trident') ,
isValidChromeVer = parseInt(navigator.substring(isChrome+7, isChrome+8)) >= 4,
isValidFireForVer = parseInt(navigator.substring(isFireFox+8, isFireFox+9)) >= 3,
isValidIEVer = parseInt(navigator.substring(isIE+8, isIE+9)) >= 7;
if((isChrome > -1 && isValidChromeVer){ console.log("Chrome Browser")}
if(isFireFox > -1 && isValidFireForVer){ console.log("FireFox Browser")}
if(isIE > -1 && isValidIEVer)){ console.log("IE Browser")}
}
其他回答
使用以下代码检查IE浏览器。
console.log(/MSIE|Trident/.test(window.navigator.userAgent))
OR
var isIE = !!document.documentMode;
console.log(isIE)
谢谢
如果有人觉得这个有用,我已经把Rob W的答案变成了一个返回浏览器字符串的函数,而不是有多个浮动的变量。由于浏览器在不重新加载的情况下也不能真正改变,所以我让它缓存结果,以防止它在下次调用函数时需要计算出来。
/** * Gets the browser name or returns an empty string if unknown. * This function also caches the result to provide for any * future calls this function has. * * @returns {string} */ var browser = function() { // Return cached result if avalible, else get result then cache it. if (browser.prototype._cachedResult) return browser.prototype._cachedResult; // Opera 8.0+ var isOpera = (!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0; // Firefox 1.0+ var isFirefox = typeof InstallTrigger !== 'undefined'; // Safari 3.0+ "[object HTMLElementConstructor]" var isSafari = /constructor/i.test(window.HTMLElement) || (function (p) { return p.toString() === "[object SafariRemoteNotification]"; })(!window['safari'] || safari.pushNotification); // Internet Explorer 6-11 var isIE = /*@cc_on!@*/false || !!document.documentMode; // Edge 20+ var isEdge = !isIE && !!window.StyleMedia; // Chrome 1+ var isChrome = !!window.chrome && !!window.chrome.webstore; // Blink engine detection var isBlink = (isChrome || isOpera) && !!window.CSS; return browser.prototype._cachedResult = isOpera ? 'Opera' : isFirefox ? 'Firefox' : isSafari ? 'Safari' : isChrome ? 'Chrome' : isIE ? 'IE' : isEdge ? 'Edge' : isBlink ? 'Blink' : "Don't know"; }; console.log(browser());
var BrowserDetect = {
init: function () {
this.browser = this.searchString(this.dataBrowser) || "Other";
this.version = this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || "Unknown";
},
searchString: function (data) {
for (var i = 0; i < data.length; i++) {
var dataString = data[i].string;
this.versionSearchString = data[i].subString;
if (dataString.indexOf(data[i].subString) !== -1) {
return data[i].identity;
}
}
},
searchVersion: function (dataString) {
var index = dataString.indexOf(this.versionSearchString);
if (index === -1) {
return;
}
var rv = dataString.indexOf("rv:");
if (this.versionSearchString === "Trident" && rv !== -1) {
return parseFloat(dataString.substring(rv + 3));
} else {
return parseFloat(dataString.substring(index + this.versionSearchString.length + 1));
}
},
dataBrowser: [
{string: navigator.userAgent, subString: "Edge", identity: "MS Edge"},
{string: navigator.userAgent, subString: "MSIE", identity: "Explorer"},
{string: navigator.userAgent, subString: "Trident", identity: "Explorer"},
{string: navigator.userAgent, subString: "Firefox", identity: "Firefox"},
{string: navigator.userAgent, subString: "Opera", identity: "Opera"},
{string: navigator.userAgent, subString: "OPR", identity: "Opera"},
{string: navigator.userAgent, subString: "Chrome", identity: "Chrome"},
{string: navigator.userAgent, subString: "Safari", identity: "Safari"}
]
};
BrowserDetect.init();
var bv= BrowserDetect.browser;
if( bv == "Chrome"){
$("body").addClass("chrome");
}
else if(bv == "MS Edge"){
$("body").addClass("edge");
}
else if(bv == "Explorer"){
$("body").addClass("ie");
}
else if(bv == "Firefox"){
$("body").addClass("Firefox");
}
$(".relative").click(function(){
$(".oc").toggle('slide', { direction: 'left', mode: 'show' }, 500);
$(".oc1").css({
'width' : '100%',
'margin-left' : '0px',
});
});
检测浏览器及其版本
此代码片段基于MDN的文章。他们给出了可以用来检测浏览器名称的各种关键字的简短提示。
上图中显示的数据不足以检测所有浏览器,例如,Firefox的userAgent将Fxios作为关键字,而不是Firefox。
还做了一些更改来检测Edge和UCBrowser等浏览器
在dev-tools的帮助下,通过更改userAgent来测试以下浏览器的代码(如何更改userAgent):
火狐 铬 即 边缘 歌剧 Safari UCBrowser
getBrowser = () => { const userAgent = navigator.userAgent; let browser = "unkown"; // Detect browser name browser = (/ucbrowser/i).test(userAgent) ? 'UCBrowser' : browser; browser = (/edg/i).test(userAgent) ? 'Edge' : browser; browser = (/googlebot/i).test(userAgent) ? 'GoogleBot' : browser; browser = (/chromium/i).test(userAgent) ? 'Chromium' : browser; browser = (/firefox|fxios/i).test(userAgent) && !(/seamonkey/i).test(userAgent) ? 'Firefox' : browser; browser = (/; msie|trident/i).test(userAgent) && !(/ucbrowser/i).test(userAgent) ? 'IE' : browser; browser = (/chrome|crios/i).test(userAgent) && !(/opr|opera|chromium|edg|ucbrowser|googlebot/i).test(userAgent) ? 'Chrome' : browser;; browser = (/safari/i).test(userAgent) && !(/chromium|edg|ucbrowser|chrome|crios|opr|opera|fxios|firefox/i).test(userAgent) ? 'Safari' : browser; browser = (/opr|opera/i).test(userAgent) ? 'Opera' : browser; // detect browser version switch (browser) { case 'UCBrowser': return `${browser}/${browserVersion(userAgent,/(ucbrowser)\/([\d\.]+)/i)}`; case 'Edge': return `${browser}/${browserVersion(userAgent,/(edge|edga|edgios|edg)\/([\d\.]+)/i)}`; case 'GoogleBot': return `${browser}/${browserVersion(userAgent,/(googlebot)\/([\d\.]+)/i)}`; case 'Chromium': return `${browser}/${browserVersion(userAgent,/(chromium)\/([\d\.]+)/i)}`; case 'Firefox': return `${browser}/${browserVersion(userAgent,/(firefox|fxios)\/([\d\.]+)/i)}`; case 'Chrome': return `${browser}/${browserVersion(userAgent,/(chrome|crios)\/([\d\.]+)/i)}`; case 'Safari': return `${browser}/${browserVersion(userAgent,/(safari)\/([\d\.]+)/i)}`; case 'Opera': return `${browser}/${browserVersion(userAgent,/(opera|opr)\/([\d\.]+)/i)}`; case 'IE': const version = browserVersion(userAgent,/(trident)\/([\d\.]+)/i); // IE version is mapped using trident version // IE/8.0 = Trident/4.0, IE/9.0 = Trident/5.0 return version ? `${browser}/${parseFloat(version) + 4.0}` : `${browser}/7.0`; default: return `unknown/0.0.0.0`; } } browserVersion = (userAgent,regex) => { return userAgent.match(regex) ? userAgent.match(regex)[2] : null; } console.log(getBrowser());
import getAgent, { getAccurateAgent } from "@egjs/agent";
const agent = getAgent();
getAccurateAgent().then((accurate_agent)=>{
console.log(agent,'accurate.');
})
console.log(agent);
https://github.com/naver/egjs-agent