I am looking thru the doc and it seems very obscure how to deal with form validation. Of course, I found this:
https://ionicthemes.com/tutorials/about/forms-and-validation-in-ionic . But I am using Vue.
I assumed I would find some basic «how to». For example, the doc for
<ion-item> stipulates that « Items containing an input will highlight the bottom border of the input with a different color when focused, valid, or invalid».
My question is more: How can we set the ion-item to invalid?
For now, all I see is that Ionic is still tightly coupled with Angular.