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Finding a secure way to detect Google Chrome using Javascript?
Using Javascript to identify Google Chrome and apply CSS changes
Is there a JavaScript statement that can be used to execute code only when the user is not using Google Chrome as the browser?
let checkForChrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
if (!checkForChrome) {
//perform certain actions
}
Note: It is uncertain how this will impact the performance on the Chrome mobile browser.
Update: This code snippet might not work as expected in Microsoft Edge. Here is the revised version:
let checkForChrome = (typeof window.chrome === "object" && navigator.appVersion.indexOf('Edge') === -1)
Yes, I occasionally utilize this JavaScript code to verify browser compatibility.
var isIE6 = false /*@cc_on || @_jscript_version < 5.7 @*/
var isIE7 = (document.all && !window.opera && window.XMLHttpRequest && navigator.userAgent.toString().toLowerCase().indexOf('Trident/4.0') == -1) ? true : false;
var isIE8 = (navigator.userAgent.toString().toLowerCase().indexOf('trident/4.0') != -1);
var isIE9 = (navigator.userAgent.toString().toLowerCase().indexOf('trident/5.0') != -1);
var isSafari = (navigator.userAgent.toString().toLowerCase().indexOf("safari") != -1) && (navigator.userAgent.toString().toLowerCase().indexOf("chrome") == -1);
var isFirefox = (navigator.userAgent.toString().toLowerCase().indexOf("firefox") != -1);
var isChrome = (navigator.userAgent.toString().toLowerCase().indexOf("chrome") != -1);
var isAndroid= (navigator.appVersion.toString().indexOf("Android", 0)!=-1)
var isMobileSafari = ((navigator.userAgent.toString().toLowerCase().indexOf("iphone")!=-1) || (navigator.userAgent.toString().toLowerCase().indexOf("ipod")!=-1) || (navigator.userAgent.toString().toLowerCase().indexOf("ipad")!=-1)) ? true : false;
In your JavaScript code, utilize these variables with appropriate if statements.
Verifying the existence of the window.chrome property serves as a reliable method for identifying Chrome without depending on the user agent string:
if(typeof window.chrome != "object") {
// browser is not Chrome
} else {
// browser is Chrome (or a derivative of Chromium)
}
While some responses to this inquiry hold merit, I strongly advise against relying on "browser sniffing" unless absolutely necessary. For more information, visit: http://www.sitepoint.com/why-browser-sniffing-stinks/
Instead, consider utilizing useful resources like Modernizr to determine if a user's browser can support specific features.
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