vue js 手写 正则判断 手机号码 和 密码

const phoneOrEmails = /^1[3|4|5|6|7|8|9][0-9]\d{8}$/
            if(this.ruleForms.phoneOrEmail  == '' ||this.ruleForms.phoneOrEmail ==  undefined ){                 this.$message.error("请输入手机号码")                 return             }   const emailReg = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{8,12}$/   if( !emailReg.test( this.ruleForms.password2 ) || !emailReg.test( this.ruleForms.password3 )  ){                 this.$message.error("密码只能由大小写字母开头并且长度不低于8位")                 return             }