I have one page that will be run for the whole day and I also need to refresh the data every 5 seconds. here is code=> private ngUnsubscribe = new Subject(); selectData(){ this.selectData$= interval(5000).pipe( takeUntil(this.ngUnsubscribe), startWith(0), switchMap(_ => forkJoin([ getAll1(), getAll2()])), multicast(() => new Subject()) ) as ConnectableObservable<any>; this.dataBinding(); this.selectData$.connect(); } dataBinding(){ this.selectData$ .pipe( takeUntil(this.ngUnsubscribe) ..
I am developing a simple live chat using Web Socket using flask_socketio with Angular on frontend. web-socket.service.ts openWebSocket(): void { this.webSocket = new WebSocket(‘ws://localhost:5000’); this.webSocket.onopen = (event) => { console.log(‘Opened connection: ‘, event); }; this.webSocket.onmessage = (event) => { const chatMessageDTO = JSON.parse(event.data); this.chatMessages.push(chatMessageDTO); }; this.webSocket.onclose = (event) => { console.log(‘Closed connection: ‘, event); }; ..
I want to filter by multiple Input Elements looking like this: Input Elements The fields seen in the image should be filtered at the same time. If one isn’t used it should still filter. I can show you the code I’m currently working with. let searchFilter:SearchableJobFilterInput = { or: [ { categoryID: { matchPhrasePrefix: form.category ..
I have created a table in the child component and also stored a refresh function in it. Now I would like to call this in my parent component and execute it by clicking on the button. Can you please tell me how I can realize this? My Code: // Child-Component ngOnInit() { this.refresh(); } /** ..
Hello I am new to angular and currentlty trying out curd operations using an api. I have Two Components ListPage with a Edit Button, and a EditPage with required TextFields to Edit my object. when i Click Edit function (click)="editItem(dataItem) (dataItem is the object i need to edit) is called and the object is recived ..
I have a site built with Asp.Net mvc where I show a list of products and automatically fill in the default purchasing amount for those products in each corresponding input field. However when i navigate to a different product catalog using the anchor tag the ‘Changes may not be saved’ alert pops up presumably because ..
I’m quite new to unit testing observables, so far I found out that there are two ways of testing them either by using the subscribe and assert pattern or by using marble testing. I do now have a task at hand where I need some sort of long polling implementation. The implementation is working fine, ..
I have a question about the href of the tag and the routerLink that angular provides. I know that href reloads the page, so you lose the state, and that routerLink does not reload the page, so you don’t lose any state. My question is the following, if I have a section of my application ..
if (md5hash === payload.md5hash) { result = { path: payload.localFilePath, length: payload.length, md5hash: payload.md5hash }; // HOW TO RETURN result before observer complete is called ??? observer.complete(); Please help me , I am new to Angular Source: Angular..
Trying to use the NGRX with angular 12 keep getting weird errors like below Cannot assign to read only property ‘status’ of object ‘[object Object]’ TypeError: Cannot assign to read only property ‘status’ of object ‘[object Object]’ TypeError: Cannot assign to read only property ‘status’ of object ‘[object Object]’ TypeError: Cannot add property 0, object ..
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