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Java 2021-11-19 07:38:15
radio button lambda javafx
radioButton.selectedProperty().addListener(new ChangeListener<Boolean>() { @Override public void changed(ObservableValue<? extends Boolean> obs, Boolean wasPreviouslySelected, Boolean isNowSelected) { if (isNowSelected) { ... Add solution -
TypeScript 2021-11-18 02:01:13
angular no internet detection
//Tested with Angular 8.1 and rxjs 6.5.2 import { Observable, Observer, fromEvent, merge } from 'rxjs'; import { map } from 'rxjs/operators'; ngOnInit(){ this.createOnline$().subscribe(isOnline => console.log(isOnline)); } createOnline$() { return m... Add solution -
TypeScript 2021-11-17 15:57:13
non-abstract class does not implement inherited abstract member typescript
// You need to mark fields and methods that are not implemented as abstract abstract class AbstractService { abstract someMethod(): Observable<SomeType> } // This will also force implementing classes to actually implement the methods: // Error... Add solution -
Javascript 2021-11-17 14:59:20
subject in angular 8
import { Injectable } from '@angular/core'; import { Observable, Subject } from 'rxjs'; @Injectable({ providedIn: 'root' }) export class MessageService { private subject = new Subject<any>(); sendMessage(message: string) { this.sub... Add solution -
Javascript 2021-11-15 09:26:54
angular http error handling
// src/app/services/interceptor.service.ts import { Injectable } from '@angular/core'; import { HttpInterceptor, HttpRequest, HttpHandler, HttpEvent, HttpErrorResponse } from '@angular/common/http'; import { Observable, throwEr... Add solution -
Javascript 2021-11-14 17:01:23
knockout js get old and new value
ko.subscribable.fn.subscribeChanged = function (callback) { var savedValue = this.peek(); return this.subscribe(function (latestValue) { var oldValue = savedValue; savedValue = latestValue; callback(latestValue, oldValue); ... Add solution -
Html 2021-11-11 15:44:18
html button disable knockout
<p> <input type='checkbox' data-bind="checked: hasCellphone" /> I have a cellphone </p> <p> Your cellphone number: <input ... Add solution
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