Browser detection using Angular

问题

I have a requirement in my project to show outdated browser message when user uses old browser.

I am using angular 1.5.5. I tried with angular-bowser module which works on angular supported browser, but the problem comes with old versions like IE8, which doesn't support my angular version . So angular-bowser module doesn't work .

Can somebody let me know about any other ways or some library or anything in that matter that can help?

回答1:

because angularjs doesn't just depend on angular modules you can use native javascript like so to detect the browser version:

JAVASCRIPT:

navigator.sayswho= (function(){
    var ua= navigator.userAgent, tem, 
    M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
    if(/trident/i.test(M[1])){
        tem=  /\brv[ :]+(\d+)/g.exec(ua) || [];
        return 'IE '+(tem[1] || '');
    }
    if(M[1]=== 'Chrome'){
        tem= ua.match(/\b(OPR|Edge)\/(\d+)/);
        if(tem!= null) return tem.slice(1).join(' ').replace('OPR', 'Opera');
    }
    M= M[2]? [M[1], M[2]]: [navigator.appName, navigator.appVersion, '-?'];
    if((tem= ua.match(/version\/(\d+)/i))!= null) M.splice(1, 1, tem[1]);
    return M.join(' ');
})();

//Invoke 
navigator.sayswho;

You can use this function to determine current browser and version in your angular app and do your message dialog accordingly. Something like

JAVASCRIPT

var version = navigator.sayswho;

if (version <= 8) {
    alert("Browser outdated! Please update browser!");
    return false; //don't forget.
}

回答2:

let isMobile = /Android|iPhone/i.test(window.navigator.userAgent)

回答3:

I suggest looking at Bowser; it's sole purpose is browser detection. Check out the details here

回答4:

You can use this

$scope.isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
// Opera 8.0+ (UA detection to detect Blink/v8-powered Opera)
$scope.isFirefox = typeof InstallTrigger !== 'undefined'; // Firefox 1.0+
$scope.isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0;
// At least Safari 3+: "[object HTMLElementConstructor]"
$scope.isChrome = !!window.chrome && !$scope.isOpera; // Chrome 1+
$scope.isIE = /*@cc_on!@*/ false || !!document.documentMode; // At least IE6


function getDevice() {
  var userAgent = navigator.userAgent || navigator.vendor || window.opera;
  if (userAgent.match(/iPhone/i) || userAgent.match(/Android/i)) {
     // you can write code here for mobile
  }
}

function hasGetUserMedia() {
  return !!(navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia);
}

if (!hasGetUserMedia()) {
  alert('Your browser is not supported. Please switch to Google Chrome or Mozilla Firefox.');
}

Only the value of current browser will be true

来源：https://stackoverflow.com/questions/38790150/browser-detection-using-angular

标签

javascript

angularjs

browser-detection