Interactive rating component

Hi Ash, about the validation (I'm guessing you mean checking whether a number is clicked), one of the ways to do this is to use a simple conditional, like this:

// this is the variable with the selected number
let selected;

form.addEventListener("submit", (event) => {
 
   if (selected) {
       // display thank you card 
   }
})

You can also use not undefined:

form.addEventListener("submit", (event) => {
 
   if (selected !== undefined) {
       // display thank you card 
   }
})

Here's a CodePen for this challenge that you can check out in action: https://codepen.io/elaineleung/pen/poLZrqK

Hope this helps a bit!