How to create parametrized selector in NGXS?

Question

I would like to create a selector with arguments. Is there a clean way to do it?

Answer 1

In the documentation, under selectors, you can find memoized selectors with arguments:

@State<string[]>({
  name: 'animals',
  defaults: []
})
export class YourState{

  static selectorName(yourArgument: string) {
    return createSelector([YourState], (state: string[]) => {
      return state.filter(s => s === yourArgument);
    });
  }
}

You can then use your selector like this:

@Select(YourState.selectorName('yourArgument')) selectedStuf;

Next time, add some code examples from what you have already tried.