eventProp

Sets which property should be emitted as the field's value when the component emits an event which is based on the Event interface. The property specified by eventProp is read from the event's target property, i.e. event.target[eventProp]. Default value is value, i.e. event.target['value'].

Set globally for all fields

data() {
  return {
    options: {
      eventProp: 'target.href'
    }
  }
}

Set locally for one field

data() {
  return {
    uiSchema: [{
      component: 'input',
      model: 'isChecked',
      eventProp: 'checked',
      valueProp: 'checked',
      fieldOptions: {
        type: "checkbox",
        on: ['input']
      }
    }]

  }
}