Vue.component(), on the other hand, ... The two-way binding will sync the change of child's msg property back to the parent's parentMsg property. The one-time binding, once set up, will not sync future changes between the the parent and the child. ... Vue will refuse to set the value on the child component, and throw a warning if using the ...
Vue.js - The Progressive JavaScript Framework. If the initial value of your v-model expression does not match any of the options, the <select> element will render in an "unselected" state. On iOS, this will prevent the user from being able to select the first item, because iOS does not fire a change event in this case. It is therefore recommended to provide a disabled option with an empty ...