get var from child vue
add an event to your child call in the parent template like that
event is the name of the event
<component @event="action"/> the action could be a function call or var interaction
and then in your child you must create an event
In the child ->
<script>
export default {
mehtods: {
EventCreate() {
this.$emit('event'); event is the name of the event
}
}
}
</script>
Now the @event in parent will execute at the call of EventCreate in the child
template
See more about this.$emit to know how to send vars