是否可以在formio表单中的表单字段值发生变化时触发事件？

Question

I am using formio angular to render a simple form. The form has a birthday field and when initialized, it has a default value and if it is changed, is it possible to emit an event if the default value has been changed?

Answer 1

Yes, it is possible.

<formio
  [form]="formDefinition"
  (change)="onChange($event)"
></formio>

You can subscribe for the change event which will emit whenever a value in the form is altered.