Lars Hanisch
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flensrocker.de
Lars Hanisch
@flensrocker.de
280 followers 430 following 940 posts
Developer & Architect on .NET and Angular.
Playing guitar in a rock band to escape.
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flensrocker.de
I love this game.
www.bellika.dk/exponentile
Screenshot of the game Exponentile with a score of 65200. No more moves left.
October 29, 2025 at 9:04 PM
flensrocker.de
Taking a week off at the west most place of #Denmark
As expected a lot of weather including sun, rain and wind.
#Fyr #Blavand #Camping
The lighthouse Blåvand Fyr from down below with a blue sky and some clouds in the back.
October 22, 2025 at 1:47 PM
flensrocker.de
marketoonist.com/2023/03/ai-w...
Cartoon with two panels. In the first one the sender of an email says "A.I. turns this single bullet point into a long email I can pretend I wrote". On the second panel the receiver of the email says "A.I. makes a single bullet point out of this long email I can pretend I read".
October 2, 2025 at 10:47 AM
flensrocker.de
Thank you!

The photo reminds me of the other end of the solar modules... Tomorrow!
Loose cables hanging from the roof, waiting for connecting the solar power modules.
September 2, 2025 at 2:57 PM
flensrocker.de
Tomorrow we will be part of the grid. And the roof is new and freshly insulated, too!
In April I will receive the next invoice for heating/electricity. But cost reduction is not the main reason, I guess it will need some years to break even.

#SolarPower #Climate

BTW: is it "isolate" or "insulate"?
A roof with newly installed solar power modules. The roof itself is also new and insulated to new standards. And the chimney is covered with beautiful slates.
September 2, 2025 at 12:42 PM
flensrocker.de
Ok, I have "work" to do...
A tray of pizza
August 22, 2025 at 4:21 PM
flensrocker.de
It's ready in 5 minutes...
A tray with a not yet baked pizza, left with chorizo, right with brokkoli.
August 22, 2025 at 4:16 PM
flensrocker.de
Hey #dotnet #efcore experts!
This is how I define a "CreatedAt" column with an automatic UTC timestamp for SQL Server. I may need to port that to PostgreSQL.
How would you apply different configurations depending on the database provider without repeating too much (like "IsRequired()" etc.)?
C# EF Core snippet: builder .Property(e => e.CreatedAt) .IsRequired() .ValueGeneratedOnAdd() .HasDefaultValueSql("SYSUTCDATETIME()") // PostgreSQL: "NOW() AT TIME ZONE 'UTC'" .HasConversion(v => v, v => DateTime.SpecifyKind(v, DateTimeKind.Utc));
July 11, 2025 at 8:13 AM
flensrocker.de
tapResponse looks like you are using ngrx?

I use a variation of exhaustMap to implement an "autosave while typing" (the first and the last value of exhaustMap are handled), but for retrieving data I use switchMap in this kind of way (simplified).
Waiting for resource to get stable...
TypeScript: const state$ = request$.pipe( switchMap(req => service.getData(req).pipe( map(data => ({ type: 'SUCCESS', data })), catchError(error => of({ type: 'ERROR', error })), startWith({ type: 'LOADING' }))));
June 17, 2025 at 7:34 AM
flensrocker.de
Hey #CSharp folks, what do you think about implicit await/ConfigureAwait(false) configured with a preprocessor directive?

#dotnet #async #await
C# code proposing a new "await" preprocessor directive to not have to write "await" and ".ConfigureAwait(false)" over and over again: #await implicit // implicit "async" Task<string> GetNameAsync() { // implicit "await ... ConfigureAwait(false)" Task.Delay(100); return "World"; } // implicit "async" Task GreetAsync() { // implicit "await ... ConfigureAwait(false)" var name = GetNameAsync(); Console.WriteLine($"Hello {name}!"); } #await restore
June 3, 2025 at 11:11 AM
flensrocker.de
Dies hier:
May 26, 2025 at 11:02 AM
flensrocker.de
calc(100% - var(--bs-mat-paginator-height))
and the bottom row
var(--bs-mat-paginator-height)

Here you see my own variable, which I just to the default, but don't react to density/custom height prefs. I just "looked it up".
It would be nice to just use the official var. 2/2
CSS min-height property of a Angular Material paginator saying: var(--mat-paginator-container-size, 56px) where the CSS variable is stroked, because it is not defined.
May 13, 2025 at 7:12 AM
flensrocker.de
That was a good run!
#2048
Game over at the game 2048 (classic) with 49044 points in 2185 moves with a 4096 tile.
May 10, 2025 at 9:44 PM
flensrocker.de
Me, when everyone is talking about MCP.
#mcp #tron
MCP, the Master Control Program, from the movie TRON.
May 9, 2025 at 7:41 PM
flensrocker.de
cd rehearsal-room-v2
./configure
Room of size 6m x 5m with 4m height containing a drumset, bass amp full stack and a Marshall half stack in the back. On the right is a couch and some cases with cables and stuff not yet assembled. The same room from another perspective, so one can see the second Marshall half stack (actually a 1x12" Marshall Silver Combo standing on a 4x12 cabinet).
May 6, 2025 at 8:09 PM
flensrocker.de
#Angular 19 #Storybook 8
I see a weird "setCurrentInjector is not defined" error in my stories. "It worked" with Angular 18. My search magic fails me.
Has anyone a hint for me?
ReferenceError: setCurrentInjector is not defined at R3Injector.get (core.mjs:2173:1) at new R3Injector (core.mjs:2042:1) at createInjectorWithoutInjectorInstances (core.mjs:5725:1) at createInjector (core.mjs:5713:1) at Injector.create (core.mjs:5761:1) at createPlatformInjector (core.mjs:35979:1) at createOrReusePlatformInjector (core.mjs:36033:1) at internalCreateApplication (core.mjs:38070:1) at bootstrapApplication (browser-6JTYoVGl.mjs:418:1) at AbstractRenderer.js:127:1
April 15, 2025 at 11:26 AM
flensrocker.de
Between winter and spring.
Some trees without leaves with a bright blue sky in the background.
March 23, 2025 at 9:20 AM
flensrocker.de
Bought my wife some flowers.
Lucky me she sometimes is as nerdy as me...
I was allowed to assist while assembling. I was responsible for sorting the pieces.
LEGO orchid
January 12, 2025 at 10:22 AM
flensrocker.de
Here's the LEGO®️ set of the Borg Cube.
A grey 2x2 LEGO brick.
January 4, 2025 at 11:11 AM
flensrocker.de
My degree in maths really helps me every day.

Not really a @kevlin.bsky.social #KevlinHenney but close...
Screenshot of an item at an online shop where the capacity of that product is displayed as "2E+3 Milliliter" in scientifical notation.
January 1, 2025 at 12:20 PM
flensrocker.de
Relaxing days for everyone!
Take care of yourself and those you care about (obviously).
A decorated christmas tree, mostly golden with some electric candles in the corner of a living room next to a board with a collection of CDs.
December 24, 2024 at 8:55 AM
flensrocker.de
Regenerated the image of "takeUntilDestroyed" because the PNG export of carbon.now.sh messed up the line breaks.
Image of the following TypeScript code: import { fromEvent, of, pipe, takeUntil } from 'rxjs'; export const takeUntilAborted = (signal: AbortSignal) => { const aborted = signal.aborted ? of(true) : fromEvent(signal, 'abort'); return pipe(takeUntil(aborted)); };
December 1, 2024 at 12:19 PM
flensrocker.de
And do we need a new #rxjs operator "takeUntilAborted" since the AbortSignal gets more used in #Angular because of the new Resource API?

github.com/flens-dev/mo...
Image of the following TypeScript code: import { fromEvent, of, pipe, takeUntil } from 'rxjs'; export const takeUntilAborted = (signal: AbortSignal) => { const aborted = signal.aborted ? of(true) : fromEvent(signal, 'abort'); return pipe(takeUntil(aborted)); };
December 1, 2024 at 12:13 PM
flensrocker.de
Hey #Angular folks!
Should "abort on destroy" be a thing? To get an AbortSignal from dependency injection which aborts when the component/service etc. gets destroyed?

github.com/flens-dev/mo...
Image of the following TypeScript code: import { DestroyRef, inject, InjectionToken, Provider } from '@angular/core'; const createAbortOnDestroy = (destroyRef: DestroyRef): AbortSignal => { const abort = new AbortController(); destroyRef.onDestroy(() => abort.abort()); return abort.signal; }; export const AbortOnDestroyRef = new InjectionToken<AbortSignal>( 'AbortOnDestroyRef', ); /** * Registers an AbortOnDestroyRef in dependecy injection. */ export const provideAbortOnDestroyRef = (): Provider[] => [ { provide: AbortOnDestroyRef, useFactory: createAbortOnDestroy, deps: [DestroyRef], }, ]; /** * Uses an AbortOnDestroyRef if provided in dependency injection. * Otherwise creates a new AbortController and link it to the DestroyRef. * @returns an AbortSignal which aborts when the DestroyRef is destroyed. */ export const injectAbortOnDestroy = (): AbortSignal => { const signal = inject(AbortOnDestroyRef, { optional: true }); return signal == null ? createAbortOnDestroy(inject(DestroyRef)) : signal; };
December 1, 2024 at 12:13 PM