bug(datepicker): Date range picker emit repeated events after the first date is selected
- Lenguaje dominante
- TypeScript
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Descripción
### Is this a regression?
- [ ] Yes, this behavior used to work in the previous version
### The previous version in which this bug was not present was
_No response_
### Description
When a date range picker is opened and the start date is selected, two consecutive `valueChanges` event are triggered, and after the end date is selected the final event is triggered, in total 3 events happens instead of only two.
### Reproduction
StackBlitz link: https://stackblitz.com/edit/shrtut?
Steps to reproduce:
1. Click on the `mat-datepicker-toggle` button.
2. Select a start date like: 6/18/2023
3. Notice on the _Changes_ section below that two events were triggered.
4. Select the end date: 6/24/2023.
5. A final event in logged on the _Changes_ section.
### Expected Behavior
After selecting the first date only a single `valueChanges` event should be triggered.
The expected behavior is show on the _Workaround Changes_ section where a `debounceTime(0)` is forced in order to remove the spurious repeated event.
### Actual Behavior
Two events are triggered after selecting the start date
### Environment
- Angular: 16.1.1
- CDK/Material: 16.1.1
- Browser(s): Firefox, Chrome.
- Operating System: Linux (Fedora)
Guía de contribución
Línea de trabajo
Comienza con la reproducción vinculada de StackBlitz y el flujo del date range picker de Angular Material usando mat-datepicker-toggle y valueChanges. Reproduce la selección de 6/18/2023 seguida de 6/24/2023 en la sección Changes y, después, compárala con la solución alternativa debounceTime(0). Hecho significa un evento valueChanges después de la fecha de inicio y otro después de la fecha de finalización.
Escrito por el modelo de indexación a partir del texto del issue.
Evaluación
- Stack tecnológico
- angular, typescript
- Área
- frontend
- Tipo de issue
- Error
- Dificultad
- 3/5
- Tiempo estimado
- 1-2 días
- Estado de actividad
- Estancado
- Claridad
- Bastante claro
- Aptitud para principiantes
- 45/100