305 - 大写

[wangliang01]

<script setup>
import { ref, vModelText } from 'vue'
const value = ref('')

vModelText.beforeUpdate = (el, binding) => {
  if (el.value && binding.modifiers.capitalize) {
    el.value = el.value.charAt(0).toUpperCase() + el.value.slice(1)
  }
}
</script>

<template>
  <input type="text" v-model.capitalize="value" />
</template>