javascript - Under what circumstances will vue execute the destruction hook in the life cycle?

Question

Under what circumstances will vue execute the destruction hook in the life cycle?

Answer 1

When the component is destroyed

<demo v-if="hasDemo"></demo>

Then when hasDemo is changed from true to false, the destruction hook of the Demo component will be triggered.

Note that the v-show command does not destroy the element but only hides it, so this hook will not be triggered.