Facing issue in updating selected user state in angular using ngrx

问题

Hi guys i am new to ngrx in angular. I am showing a list of users and given a view button based on view click i want to display user info of only selected latest one. I am using ngrx for this but what happens it merge the new selected with existing one but i want latest one below is my stackbiltz link. Please check and let me know how can i modify it

回答1:

The problem isn't the reducer, but how the state is structured.

@ngrx/entity keeps a collection of loaded entities, it isn't fitted for a single entity imho.

You have two options:

• only store one used in the state, instead of a collection
• keep track of the selected user, this can be done by setting a selectedUserId in the store state and by creating a selector which will select the selected user based on the selectedUserId and the users in the state. See the example-app for an example.

来源：https://stackoverflow.com/questions/58496527/facing-issue-in-updating-selected-user-state-in-angular-using-ngrx