JavaScript mode (iii) policy mode

vardata = {        "username": "Zhangsan",        "Password": "12345690",        "Code": "ABCD"    }; varValidate ={rules: {}, config: {}, msg: [], check:function(data) {vark, rule, config, checker; Rule= This. Rules; Config= This. config;  This. msg.length = 0;  for(kinchdata) {                if(Data.hasownproperty (k)) {if(!Rule[k]) {                        Throw NewError ("Validate.check error, Error type:" + K + "not exist")); } Checker= This. Rules[k]; if(!checker.validate (Data[k])) {                         This. Msg.push (checker.msg);    }                }            }        }    }; Validate.rules.username={validate:function(username) {returnUsername.length > 7; }, msg:"User name is incorrect"    }; Validate.rules.password={validate:function(password) {returnPassword.length > 7}, msg:"The password is dead."    }; Validate.rules.code={validate:function(code) {returnCode = = = "ABCdef"; }, msg:"The verification code is not correct"    };    Validate.check (data); if(validate.msg.length) {Console.log (Validate.msg.join ("\ n")); }

JavaScript mode (iii) policy mode