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You would just create a method that updates the value of the props that you are passing into the child
<script setup>
const name = ref('')
const email = ref('')
const date = ref('')
function handleUpdate() {
name.value = /* ... */
email.value = /* ... */
date.value = /* ... */
}
</script>
<template>
<ChildComponent :name="name" :email="email" :date="date" />
<button @click="handleUpdate">OK</button>
</template>
It’s a bit hard to see what you mean but are you sure you can’t use a form here to group the values together if you have 4 selects?
Source:stackexchange.com