V-Model usage inside <script setup> and emit

v-model-emit.vue

<template>
  <input
    class="input"
    type="text"
    :placeholder="props.label"
    :value="props.modelValue"
    v-on:input="updateValue($event.target.value)"
  />
</template>

<script setup>
import { defineProps, defineEmits } from 'vue'

const props = defineProps({
  modelValue: String
})

const emit = defineEmits(['update:modelValue'])

function updateValue(value) {
  emit('update:modelValue', value)
}
</script>