vue中element的去重校验

需要校验的表单项需要有prop属性，和:error属性

	



data: {
	errorMsg: ''
},
computed: {
	...mapGetters([
		'userId'
	])
}

duplication() {
	this.$refs.userInfo.validateField('nickName', errorMsg => {
		if (!errorMsg) {
			const data = {
				nickName:  this.userInfo.nickName,
				userId:  this.userId
			}
			this.findNickName(data)
		}
	})
},
findNickName(data) {
	try{
		this.errorMsg = ''
		const res = await findNickName(data)
		if (如果昵称存在) {
			this.errorMsg  = '该昵称存在，请重新输入'
		}
	} catch (error) {
		this.$message({
			type: 'error',
			message: `${error.message}`
		})
	}
}