Issue: I am facing a challenge with an external library in my Angular application that contains components using the Angular DatePipe internally to format dates in the 'shortDate' style. Unfortunately, I am unable to switch to a different component or create a custom one due to client requirements mandating the use of this specific library. However, the client also requests a different date format other than 'shortDate'.
I attempted to extend the native Angular DatePipe with the following code:
import { DatePipe } from '@angular/common';
import { Inject, LOCALE_ID, Pipe, PipeTransform } from '@angular/core';
@Pipe({
name: 'date'
})
export class DateExtendedPipe extends DatePipe implements PipeTransform {
static readonly DEFAULT_FORMAT = 'dd/MM/yyyy';
constructor(@Inject(LOCALE_ID) locale: string) {
super(locale)
}
transform(value: Date | string | number, format?: string, timezone?: string, locale?: string): string | null;
transform(value: null | undefined, format?: string, timezone?: string, locale?: string): null;
transform(value: Date | string | number | null | undefined, format?: string, timezone?: string, locale?: string): string | null {
console.log('date format');
const ghibFormat = format && format !== 'shortDate' ? format : DateExtendedPipe.DEFAULT_FORMAT;
return super.transform(value, ghibFormat, timezone, locale);
}
}
This solution works successfully for any custom component within my application. Whenever I utilize 'my_var | date', it correctly triggers my extended pipe instead of the default Angular DatePipe.
However, when it comes to components from node_modules, the default Angular DatePipe is still activated instead of my extended version. This behavior could possibly be related to the architecture of Angular and the compilation process prioritizing node_modules. Although not confirmed, I'm curious if anyone else has encountered a similar issue and found a workaround. Thank you!