What benefits does utilizing vue-router's route.param.x offer when used in a computed value?

The Vue-router documentation presents 2 specific usage patterns:

const route = useRoute();

// Obtain the current value
const id = route.params.id;

// Monitor for changes in the value
watch(
  () => route.params.id,
  (newValue, oldValue) => {
    console.log(`The value changed from ${oldValue} to ${newValue}`);
});

Nevertheless, in many online examples, it is common to see the route being utilized as a computed reactive property:

const id = computed(() => route.params.id);

I question the benefit of using computed in this scenario. It appears that this approach may not capture changes in value and adds unnecessary complexity in obtaining the value. Am I overlooking something?

Answer №1

Be prepared to capture changes in value. Simply put, computed serves as a convenient abbreviation for the following code snippet:

const id = ref(route.params.id)

watch(
  () => route.params.id,
  (newValue) => {
    id.value = newValue
  }
)

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