🐛 [Bug]: Input 组件 clearable 属性出现问题

[jxhhdx]

Version

dev分支

Vue Version

3.2.29

Link to minimal reproduction

<template>
  <div class="devui-input-demo">
    <d-input v-model="valueClear" clearable @clear="handleClear" placeholder="请输入"></d-input>
  </div>
</template>

<script>
import { defineComponent, ref } from 'vue';

export default defineComponent({
  setup() {
    const handleClear = () => {
      console.log('clear');
    };
    const valueClear = ref(null);
    return {
      valueClear,
      handleClear,
    };
  },
});
</script>

Step to reproduce

将当前代码应用到dev分支

What is expected

正常使用

What is actually happening

程序出现了问题

Any additional comments (optional)

如果`v-model`绑定的初始值为`null`这类没有`length`属性的类型，程序就会出现异常

[vaebe]

看来需要把 判断优化下🤪 等测试报错解决了 修一下