Our mission: to help people learn to code for free. Design, JavaScript Simply enter the URL of your app to run the synthetic tests. And that’s non other than yourself! Donations to freeCodeCamp go toward our education initiatives, and help pay for servers, services, Also, for the sake of brevity I will just refer to Google Analytics as GA. GA also doesn't work with local host. Then, we created two API functions we will export and use in our React components: We can now import these functions to our React components. Which is why we wrote const unlisten = listen(...), we’ll keep that unlisten method and run it when we want to remove the event listener. To add Google Analytics to React, I recommend using React-GA. Add by running: npm install react-ga --save. RSync So we have to declare what could be in the window ourselves, like so: Google uses a few names for this glorified apiKey; in the example above, I have it down as UA-YOUR1KEY-HERE, and you are of course supposed to replace it with your own, actual key / project id / GA_MEASUREMENT_ID. In our use-case trackingId and listen will never change, so it will only run once, for the first render, and never rerun. Using the RNFirebase Analytics Module, we can implement Firebase Analytics to track React Native mobile apps. And it now runs Google Analytics to see if anybody is actually visiting! So instead of changing height and width use scale X and scaleY. If your hero element is an image then you can simply look at the resource timing API and then look at responseEnd property and use that as your FMP. You don’t need to know the details if you skipped it, as now we’ll be zooming in to what we’re doing with the listen method! We are simply just parsing out the user id and then concatenating the route again before sending the hit. I find this is helpful for testing, as we can now use our named export and render it inside our own custom providers: such as an in memory router for React Router, or the MockedProvider for Apollo. While you can’t just paste in your embed code and be done with it, it’s still pretty easy to use Google Analytics in a single page application. Even if it did, it’d be no problem since we’ve taken care to do proper cleanup in the section above. Well, during the hook’s cleanup phase. Get started, freeCodeCamp is a donor-supported tax-exempt 501(c)(3) nonprofit organization (United States Federal gtag('config', 'UA-1234567-89', {'page_path': '/new-page.html'}); import { useHistory } from 'react-router-dom', window.gtag('config', trackingId, { page_path: location.pathname }), import { useTracking } from './useTracking', follow the flow to set-up a new account / property for your new app in Google Analytics, a page that asks you to paste a snippet of code “immediately after the tag on every page of your site”, XML, Read, send, write: Javascript front to Node back, What we really mean when we talk about prototypes, Loops Inside of Loops: Using Objects to Decrease Time Complexity of Compare Algorithms, How to Use Chrome DevTools to Improve Performance, Global Cached State in React using Hooks, Context, and Local Storage. The React app uses the react-router-dom and react-ga modules. There are a few things that happen before the requestStart such as DNS lookup and the TLS handshake. You’ll be tracking where the users land, but you won’t be tracking them navigating to different routes!

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