How to fix Vue + TypeScript error?

Question

typescript

form.categoryId = computed(() => {
    return storeCategory.getSelectedCategory.id;
  });

Gives this error

(property) categoryId: number
Тип "ComputedRef<number>" не может быть назначен для типа "number"

Answer 1

What do you not understand from the description of the error?
You are trying to assign the object ComputedRef<number>returned by the computed function to an object field declared as number.
You need to either change the type of the field, or update the field through watch.