How To Tell If A Web Application Is Using Reactjs

I know there are tools like Wappalyzer & BuiltWith that give you information about which framework or library is used in a website. But I need some kind of proof regarding if R

Solution 1:

try the below snippet, thanks for the examples for each site listed by rambabusaravanan. See the below link

if(!!window.React ||
   !!document.querySelector('[data-reactroot], [data-reactid]'))
  console.log('React.js');

if(!!window.angular ||
   !!document.querySelector('.ng-binding, [ng-app], [data-ng-app], [ng-controller], [data-ng-controller], [ng-repeat], [data-ng-repeat]') ||
   !!document.querySelector('script[src*="angular.js"], script[src*="angular.min.js"]'))
  console.log('Angular.js');

if(!!window.Backbone) console.log('Backbone.js');
if(!!window.Ember) console.log('Ember.js');
if(!!window.Vue) console.log('Vue.js');
if(!!window.Meteor) console.log('Meteor.js');
if(!!window.Zepto) console.log('Zepto.js');
if(!!window.jQuery) console.log('jQuery.js');

you can find additional info here link

Solution 2:

I had the same problem, and in my case, I found it better to rely on the React Developer Tools.

You can install it in Google Chrome, access the website you want to check, and open the Chrome DevTools.

If the website uses React, the React Developer Tools will include two tabs in the Chrome DevTools:

Otherwise, the React Developer Tools won't include the tabs:

Solution 3:

There is an extension in Chrome named 'React Developer Tools' which allows you to inspect the React component hierarchies in the Chrome Developer Tools

https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi

There is also another extension named 'React-detector' as well :)

https://chrome.google.com/webstore/detail/react-detector/jaaklebbenondhkanegppccanebkdjlh

Solution 4:

Following @DILEEP THOMAS answer:

For Angular (component based) use this code:

if (
    window.hasOwnProperty("ng") &&
    window.ng.hasOwnProperty("coreTokens") &&
    window.ng.coreTokens.hasOwnProperty("NgZone")
  ) {
    console.log("Angular");
  }

Run the code in the console on the following webpages:

Web pages/apps which use Angular2+ are: https://www.samsung-forward.ru/, https://www.delta.com/

Stackoverflow.com seems not to be using it.