I have a SSR Angular app which I am trying to transform into a PWA. I want it to be server-side rendered for SEO and for the “fast first rendering” that it provides. The PWA mode works fine when combined with SSR, but once the app is loaded, when we refresh it, the client index HTML file is loaded…
Tag: angular
rxjs observable.pipe(take(1)) vs toPromise
Recently I’ve been moved to a new project which uses angular 6 as frontend framework and spring for REST services. The project is in development for 2 years now and what I’ve observed was that almost all HTTP request made with angular HttpClient is then piped to take filter from rxjs. All REST API…
How do I resolve error “TS2339: Property ‘gauge’ does not exist on type ‘JQuery’.”
I am working on an ionic (version 4) application and I want to implement a custom gauge meter. Since, I am new to jQuery I am not sure what exactly this error means. I am using a jQuery plugin jquery-gauge.min.js which contains a method gauge() as shown below which works perfectly fine and normally in any web…
How to destroy a component when we move to another component in angular 6?
In angular 6, let we have three component x,y,z . I am in now at x component. But when I go to component y and return back to x, there is still the previous x component in the DOM. But I want to delete the previous instance of x.That means I want only one intstance of a component at a
TypeError: “this is undefined” When using forEach on member array
I have a class marketData: I would like to define a member function for it, validate(), that checks that the values of the class are set properly. I wrote part of this method to check itemPrices: However, the above gives me a ERROR TypeError: “this is undefined”. I got the exact same error trying …
How can I convert scrollIntoView with smooth animation to a Promise?
I have to scrollIntoView a particular element smoothly and then do something. Example I know that it can’t be done this way as native scrollIntoView doesn’t return a Promise. But, how do I achieve something like this? I’m using Angular 7 BTW. So if there are any directives that could help me…
Adding a new line in MatDialog Content Angular 7
I am using MatDialog and trying to add a new line in the content definition. Both n and </b> are not doing it. Is there another way without having to manually go into the html and change it since it’s a reusable component: HTML Answer You can use the [innerHTML] property: and instead of nn, use th…
How to set value to parent component property when a button is clicked in Child component in Angular
I am new to Angular 7 (2+) & trying my hands on @Input & @Output. However, passing data from Parent to Child component via @Input is understood & in place. However, very basic on the other hand passing data from Child to Parent component via using @Output concept is understood & but the implem…
How to set column width of XLSX worksheet in angular4
I am Converting HTML to XLSX sheet in angular using SheetJS. But the width of each column is 256 only, I want to increase it I have tried using ws[!cols] of ColInfo but not able to correctly implement it or set it ‘wch’ & ‘width’ I want to provide custom width for each column in ge…
Angular 404 page routing for nested modules
I’m Using nested modules in my project In the main route I only configured top-level routes: app-routing.module.ts Separately, I configured routes separately in each sub-modules, like: mall-routing.module.ts The result is, because that no other routes are defined in the main routing configs, all request…