elementui 表单校验TypeError: callback is not a function
form表单自定义校验或者远程校验(从后端获取校验结果)时,要注意以下细节:data(){constvalidateuser=(rule,value,callback)=>{letself=this;if(!value)returncallback(newError("请输入登录名"));checkLoginName(self,{loginName:value}).then(response=>{