If you're on desktop, just paste them into the browser's console and hit enter.
On mobile, you're unlikely to have access to the browser's actual console. That's why we've included Eruda, which allows you to have a console on mobile:
- To access Eruda, go to Settings -> Web Inspector.
- You should see a little box show up in the corner of your screen, tap on it.
- In the view that pops up, you should be on the "Console" tab. At the very bottom of it, there should be a little input box, tap on that.
- Paste in the script to the input that shows, hide your keyboard, and press "Execute"