Vue使用element-ui，相同的message只弹出一个

创建一个js文件

/** 重写elemen-ui的message，防止出现同一时间弹出多个相同信息的message弹框 */
import { Message } from 'element-ui'
const resetMessage = (options) => {
  let doms = document.getElementsByClassName('el-message')
  let canShow = true
  for (let i = 0; i < doms.length; i++) {
    if (options.message === doms[i].getElementsByClassName('el-message__content')[0].innerHTML) {
      canShow = false
    }
  }
  if (doms.length === 0 || canShow) {
    Message(options)
  }
};
['error', 'success', 'info', 'warning'].forEach(type => {
  resetMessage[type] = options => {
    if (typeof options === 'string') {
      options = {
        message: options
      }
    }
    options.type = type
    return resetMessage(options)
  }
})
export const message = resetMessage

在main.js中引入

import { message } from './assets/reset/resetMessage'
Vue.prototype.$message = message

报错解决

’doms’ is never reassigned. Use ‘const’ instead.
在.eslintrc.js文件中添加规则 { “rules”:{ “prefer-const”: “off” } }之后依旧报错
error ‘doms’ is never reassigned. Use ‘const’ instead prefer-const
根据两个提示，只用把let改为const

效果

相同的消息“登陆成功”只显示一个，不同的消息会显示多个

https://blog.csdn.net/dongguan_123/article/details/101290164
https://blog.csdn.net/Linho/article/details/105856686
https://blog.csdn.net/qq_39697433/article/details/108060712