NGRX state mutation

user_5769464 0
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I am developing an enterprise Angular project using Angular CLI and NGRX version 10. Inside a component, I receive a state property via selector and then I change that object. I get no error and this is confusing for me because the state is immutable but it is muted without any error.

mutation ngrx redux angular state
1 Answers

By default ngrx doesn't detect such errors to improve performance.

If you want you can enable them during local development:

@NgModule({
  imports: [
    StoreModule.forRoot(reducers, {
      runtimeChecks: {
        strictStateImmutability: true, // <- what you need
        strictActionImmutability: true, // <- what you need
        strictStateSerializability: true,
        strictActionSerializability: true,
        strictActionWithinNgZone: true,
        strictActionTypeUniqueness: true,
      },
    }),
  ],
})
export class AppModule {}

More info is here: https://ngrx.io/guide/store/configuration/runtime-checks

user_131120180
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