bug(datepicker): Date range picker emit repeated events after the first date is selected
- Langage dominant
- TypeScript
- Étoiles
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- Merge moyen
- 1 j 8 h
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Description
### 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)
Guide de contribution
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Piste de recherche
Commencez par la reproduction StackBlitz liée et le flux du date range picker d’Angular Material utilisant mat-datepicker-toggle et valueChanges. Reproduisez la sélection de 6/18/2023 suivie de 6/24/2023 dans la section Changes, puis comparez-la avec le contournement debounceTime(0). Cela est terminé lorsqu’un événement valueChanges se produit après la date de début et un autre après la date de fin.
Rédigé par le modèle d'indexation à partir du texte de l'issue.
Évaluation
- Stack technique
- angular, typescript
- Domaine
- frontend
- Type d'issue
- Bug
- Difficulté
- 3/5
- Temps estimé
- 1-2 jours
- Activité
- À l'abandon
- Clarté
- Plutôt claire
- Accessibilité débutants
- 45/100