JS verification components adopt a policy mode that is easy to expand

[Javascript]
// JavaScript Document
Var checkObj = {/** data verification class **/
CheckFunc :{}, // set of function objects for data verification
ErrorMessage: [], // error message
RightMessage: [], // correct message
ShowInfoFunc :{}, // function for displaying messages
CheckConfig :{}, // verify the configuration
Check: function (data) {// Verification
Var I, msg, checkType, checker, result_ OK;
For (I in data ){
/* If (data [I]. hasOwnProperty (I )){*/
CheckType = this. checkConfig [I]; // obtain the function name of the corresponding validation rule.
Checker = this. checkFunc [checkType]; // obtain the corresponding verification function
If (! CheckType ){;
Continue; // If the verification rule does not exist, no processing will be performed to jump out of the current traversal and perform the next traversal.
}
If (! Checker ){
Throw new Error ('specify '+ checkType + 'validate function'); // If the verification function does not exist, an exception is thrown.
}
/// HasOwnProperty
Result_ OK = checker. validate (data [I]); // verify a single
If (! Result_ OK ){
// Alert (data [I] + 'error ');
This. errorMessage [I] = I + checker. instructions;
If (this. showInfoFunc [I]) {// if the function is defined to show the status, call this function.
// Alert ('with functions ');
This. showInfoFunc [I] (this. errorMessage [I]);
}
} Else {
// Alert (data [I] + 'true ');
This. rightMessage [I] = I + 'fill in correctly ';
If (this. showInfoFunc [I]) {// if the function is defined to show the status, call this function.
// Alert (this. showInfoFunc [data [I]);
This. showInfoFunc [I] (this. rightMessage [I]);
}
}
} // For in
}, // Check
HasErrors: function () {// check for errors
Var _ count = 0;
For (var I in this. errorMessage ){
_ Count + = 1;
}
Return _ count! = 0;
}
}

/******* Check whether it is empty *******/
CheckObj. checkFunc. isEmpty = {
Validate: function (val ){
Return val! = '';
},
Instructions: 'input value cannot be blank! '// Error message
}
/******* Check whether non-default value is selected ******/
CheckObj. checkFunc. isDefault = {
Validate: function (val ){
Var _ default = 'default ';
Return val! = _ Default;
},
Instructions: 'select a value! '// Error message
}
/***** Check email *****/
CheckObj. checkFunc. isEmail = {
Validate: function (val ){
Var _ reg =/^ ([a-zA-Z0-9] + [_ | \.]?) * [A-zA-Z0-9] + @ ([a-zA-Z0-9] + [_ | \.]?) * [A-zA-Z0-9] + \. [a-zA-Z] {2, 3} $ /;
Return _ reg. test (val );
},
Instructions: 'enter the correct format! '// Error message
}
/****** Check whether a project is selected **********/
CheckObj. checkFunc. isChecked = {
Validate: function (val ){
Return val;
},
Instructions: 'No value is selected! '// Error message
}

The call method is as follows: www.2cto.com

[Javascript]
Var data = {
FullName: $ ('. content'). find (' # fullnametr'). find ('input'). val (),
Tel: $ ('. content'). find (' # telTr '). find ('input'). val (),
Email: $ ('. content'). find (' # emailTr '). find ('input'). val (),
Address: $ ('. content'). find (' # addressTr '). find ('input'). val (),
Send: $ ('. content '). find ('# sendTr '). find ('span [id = sendWay] '). children ('input: checked '). attr ('rel '),
SendArea: $ ('. content'). find (' # countryTr '). find ('select [name = district]'). val ()
}
***************/
CheckObj. checkConfig = {
FullName: 'isempty ',
Tel: 'isempty ',
Email: 'ismail ',
Address: 'isempty ',
Send: 'ischecked ',
SendArea: 'isdefault'
}
/************ T prompts the function ************/
CheckObj. showInfoFunc = {
FullName: function (msg ){
Trim ('<B class = "red">' + msg + '</B> ');
},
Tel: function (msg ){
Certificate ('.content'{.find('{teltr'}.find('spanceclass?showinfo='{.html ('<B class = "red">' + msg + '</B> ');
},
Email: function (msg ){
Certificate ('.content'{.find('{emailtr'}.find('spanceclass?showinfo='{.html ('<B class = "red">' + msg + '</B> ');
},
Address: function (msg ){
Certificate ('.content'{.find('{ssstr'}.find('span?class=showinfow.'{.html ('<B class = "red">' + msg + '</B> ');
},
Send: function (msg ){
Certificate ('.content'{.find('{sendtr'}.find('span?class=showinfo='{.html ('<B class = "red">' + msg + '</B> ');
},
SendArea: function (msg ){
Certificate ('.content'{.find('{countrytr'}.find('span?class=showinfow.'{.html ('<B class = "red">' + msg + '</B> ');
}
}
/************** Call check ***************/
CheckObj. check (data );
*************/
// Alert (checkObj. rightMessage. lengths );
If (checkObj. hasErrors ()){
Alert ('error occurred ');
}

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