[Bug Report] el-input component handleInput error reporting #14013
Description
Element UI version
2.4.11
OS/Browsers version
mac
Vue version
2.5.21
Reproduction Link
https://github.com/ElemeFE/element/blob/dev/packages/input/src/input.vue
Steps to reproduce
handleInput 方法，里面使用了$refs.input
这个方法被input 和textarea 调用，textarea没有$refs.input 导致报错
缺少判断
What is Expected?
修复
What is actually happening?
修复