Browser Detection in ReactJS

Not sure why but nobody mentioned this package: react-device-detect The package have a lot browsers checks, plus versions and some other info related. It's really small and it's updated.

You can use:

import { isIE } from 'react-device-detect';
isIE // returns true or false

react-device-detect it's also very small bundlephobia link

This is the service I always use when doing JS/Browser based browser-detection: http://is.js.org/

if (is.ie() || is.edge()) {
  window.location.href = 'http://example.com';
}

I was using Gatsby for our React site and build was giving me trouble with the accepted answer, so I ended up using a useEffect on load to be able to not render for IE at a minimum:

  const [isIE, setIsIE] = React.useState(false);

  React.useEffect(() => {
    console.log(`UA: ${window.navigator.userAgent}`);
    var msie = window.navigator.userAgent.indexOf("MSIE ");
    setIsIE(msie > 0)
  }, []);

  if(isIE) {
    return <></>
  }

// In my component render

if(isIE) { return <></> }

Got the idea originally from:

https://medium.com/react-review/how-to-create-a-custom-usedevicedetect-react-hook-f5a1bfe64599

and

Check if user is using IE

Try:

const isEdge = window.navigator.userAgent.indexOf('Edge') != -1
const isIE = window.navigator.userAgent.indexOf('Trident') != -1 && !isEdge

etc.

Each browser has a distinct user agent you can check.

These can be faked by the client of course, but in my opinion, are a more reliable long term solution.

You can write test for IE like this.

<script>
     // Internet Explorer 6-11
          const isIE = document.documentMode;
          if (isIE){
            window.alert(
              "Your MESSAGE here."
            )
          }
</script>

This almost broke me, but I found something which seems pretty simple and straight forward, use the vendor name. ie. Google, Apple etc. navigator.vendor.includes('Apple') I hope this helps someone out there.

You can try this:

navigator.browserDetection= (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(' ');
})();

console.log(navigator.browserDetection); // outputs: `Chrome 92`

There is a new package that takes care of this for React: https://www.npmjs.com/package/react-browser-navigator

This is how you can use it:

// import the module
import useNavigator from "react-browser-navigator";

function App() {
  // importing the property
  let { userAgent } = useNavigator();

  // you can use it within the useEffect hook OR simply print the 
  // string into the return statement
  useEffect(() => {
    if (!isNull(userAgent)) {
      // printing out the entire object
      console.log("userAgent", userAgent);
    }
  }, [userAgent]);

  return (
    <div>
      <span>userAgent:</span> {userAgent}
    </div>
  );
}

Essentially, the output will be something like this:

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36

This is all information you can get from your the browser of you client (using react):

    let latitude
    let longitude
    const location = window.navigator && window.navigator.geolocation

    if (location) {
      location.getCurrentPosition(position => {
        latitude = position.coords.latitude
        longitude = position.coords.longitude
      })
    }

    var info = {
      timeOpened: new Date(),
      timezone: new Date().getTimezoneOffset() / 60,
      pageon: window.location.pathname,
      referrer: document.referrer,
      previousSites: window.history.length,
      browserName: window.navigator.appName,
      browserEngine: window.navigator.product,
      browserVersion1a: window.navigator.appVersion,
      browserVersion1b: navigator.userAgent,
      browserLanguage: navigator.language,
      browserOnline: navigator.onLine,
      browserPlatform: navigator.platform,
      javaEnabled: navigator.javaEnabled(),
      dataCookiesEnabled: navigator.cookieEnabled,
      dataCookies1: document.cookie,
      dataCookies2: decodeURIComponent(document.cookie.split(';')),
      dataStorage: localStorage,
      sizeScreenW: window.screen.width,
      sizeScreenH: window.screen.height,
      sizeDocW: window.document.width,
      sizeDocH: window.document.height,
      sizeInW: window.innerWidth,
      sizeInH: window.innerHeight,
      sizeAvailW: window.screen.availWidth,
      sizeAvailH: window.screen.availHeight,
      scrColorDepth: window.screen.colorDepth,
      scrPixelDepth: window.screen.pixelDepth,
      latitude,
      longitude
    }
    console.log(info)

The browser is browserName