The following argument(s) in $emit() are the arguments in your emitted function. $emit(‘select-menu-item’, $event, 1, 2, 3, 4, “cupcakes”) and in your component method. selectMenuItem: function(evt, num1, num2, num3, num4, food){ } And in your actual component markup, you don’t need to add arguments, just write the reference to the method without parenthesis. <search-component v-bind=”searchProps” … Read more
How does it work? When a JSF view (Facelets/JSP file) get built/restored, a JSF component tree will be produced. At that moment, the view build time, all binding attributes are evaluated (along with id attribtues and taghandlers like JSTL). When the JSF component needs to be created before being added to the component tree, JSF … Read more
In chrome, got to Elements > Event Listeners > open “blur” > with the mouse go to the right of where it is written “document”, then you can see a button “Remove” > click on it
Register the EventEmitter in your child component as the @Output: @Output() onDatePicked = new EventEmitter<any>(); Emit value on click: public pickDate(date: any): void { this.onDatePicked.emit(date); } Listen for the events in your parent component’s template: <div> <calendar (onDatePicked)=”doSomething($event)”></calendar> </div> and in the parent component: public doSomething(date: any):void { console.log(‘Picked date: ‘, date); } It’s also … Read more
In my opinion, this is a completely unnecessary feature in TypeScript. To disable it, you need to change the file tsconfig.json: “compilerOptions”: { // … “noPropertyAccessFromIndexSignature”: false, // … }
Yes, use the rendered attribute. <h:form rendered=”#{some boolean condition}”> You usually tie it to the model rather than letting the model grab the component and manipulate it. E.g. <h:form rendered=”#{bean.booleanValue}” /> <h:form rendered=”#{bean.intValue gt 10}” /> <h:form rendered=”#{bean.objectValue eq null}” /> <h:form rendered=”#{bean.stringValue ne ‘someValue’}” /> <h:form rendered=”#{not empty bean.collectionValue}” /> <h:form rendered=”#{not bean.booleanValue and … Read more
I agree with siraj, strictly speaking the example in the accepted answer is not a true HOC. The distinguishing feature of a HOC is that it returns a component, whereas the PrivateRoute component in the accepted answer is a component itself. So while it accomplishes what it set out to do just fine, I don’t … Read more
Vue 3 Same as the Vue 2.6 example below except: $listeners has been merged into $attrs so v-on=”$listeners” is no longer necessary. See the migration guide. $scopedSlots is now just $slots. See migration guide. Vue 2.6 (v-slot syntax) All ordinary slots will be added to scoped slots, so you only need to do this: <wrapper> … Read more
The main difference between User Control, Custom Control and Component is that they inherit from different levels in the inheritance tree: MyComponent |-> Component MyCustomControl |-> Control |-> Component MyUserControl |-> ContainerControl |-> ScrollableControl |-> Control |-> Component So, in short you get a different amount of pre-wired functionality with the different options. When would … Read more
For [(toggled)]=”…” to work you need @Input() toggled: boolean; @Output() toggledChange: EventEmitter<boolean> = new EventEmitter<boolean>(); changeValue() { this.toggled = !(this.toggled); this.toggledChange.emit(this.toggled); } See also Two-way binding [UPDATE] – 25 June 2019 From @Mitch’s comment below: It’s worth noting that the @Output name must be the same as the @Input name, but with Change on the … Read more