JS verification ID card number (including matching verification with user input gender and birthday)

// When submitting a form
Function checktwo (){
// Return checksfz2 ();
// Alert (idcardvalidate (idcard ));
// Alert (maleorfemalbyidcard (idcard ));
// Alert (iscardname ());
// Return false;
If (iscardname () & idcardvalidate () & consistencyvalidate ()){
If (beagreed ()){
VaR agree_msg = $ ('. magree ');
Agree_msg.removeclass ('agreemsg _ R ');
Agree_msg.addclass ('agreemsg ');
Return true;
}
}
Certificate ('.next_msg'mirror.css ('display', 'block ');
Return false;

}

// Select "I agree"

Function beagreed (){
VaR agree = $ ('. Agree ');
VaR agree_msg = $ ('. magree ');
If (agree. ATTR ('checked') = 'checked '){
Agree_msg.removeclass ('agreemsg _ R ');
Agree_msg.addclass ('agreemsg ');
Return true;
}
Agree_msg.removeclass ('agreemsg ');
Agree_msg.addclass ('agreemsg _ R ');
Return false;
}
// Check name: The name is a string of 2 to 15 characters.
Function iscardname ()
{
VaR nameindium = $ ('. name ');
VaR name = $ ('. name'). Val ();
VaR name_empty = $ ('. nameempty ');
If (name = ''){
Name_empty.css ('visibility ', 'visable ');
Return false;
}
VaR patrn =/^ \ s * [\ u4e00-\ u9fa5] {1,} [\ u4e00-\ u9fa5. ·] {0, 15} [\ u4e00-\ u9fa5] {1,} \ s * $ /;
If (! Patrn.exe C (name ))
{
Name_empty.css ('visibility ', 'visable ');
Return false;
}
Name_empty.css ('visibility ', 'den den ');
Return true;
}

// Verify the ID card, birthday, and gender
Function consistencyvalidate (){
// Alert (idcardvalidate ());
VaR idcard = $ ('. idnum'). Val ();
If (idcard! = ''){
If (idcardvalidate ()){
Nian = idcard. substr (6, 4 );
Yue = idcard. substr (10, 2 );
Ri = idcard. substr (12, 2 );
VaR Birthday = $ ('. birthday'). Val ();
// Alert (birthday );
VaR gender = $ ('. gendersel'). Val ();
VaR birthdaycard = Nian + "-" + Yue + "-" + Ri;
VaR gendercard = maleorfemalbyidcard (idcard );
VaR gender_error = $ ('. gendererror ');
VaR birthday_error = $ ('. birthdayerror ');
// Alert (Gender = gendercard );
If (gender! = Gendercard ){
Gender_error.css ('visibility ', 'visable ');
Return false;
} If (Gender = gendercard ){
Gender_error.css ('visibility ', 'den den ');
} If (birthday! = Birthdaycard | Birthday = ''){
Birthday_error.css ('visibility ', 'visable ');
Return false;
} If (Birthday = birthdaycard ){
Birthday_error.css ('visibility ', 'den den ');
}
Return true;
}
}
}
/**
* ID card 15-bit encoding rule: dddddd yymmdd XX p
* Dddddd: Location Code
* Yymmdd: Date of birth
* XX: sequence class encoding, which cannot be determined
* P: gender. The odd number is male and the even number is female.
* <P/>
* ID card 18-bit encoding rule: dddddd yyyymmdd XXX y
* Dddddd: Location Code
* Yyyymmdd: Date of birth
* XXX: sequence class code, which cannot be determined. The odd number is male and the even number is female.
* Y: Check Code. The value can be obtained through the first 17 digits.
* <P/>
* The 18-digit number weighting factor is (from right to left) Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1]

* Verification digit y = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2]
* Formula for calculating the checkpoint: y_p = Mod (Σ (AI × WI), 11)
* I is the 2 .. 18 bits of the ID card number from right to left; y_p is the position of the checkcode array where the ankle checkcode is located
*
*/
VaR Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1]; // Weighting Factor

VaR validecode = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2]; // ID card verification bid value. 10 represents x

// Verify the ID card number (18 digits)

Function idcardvalidate (){
// Get the birthday in the ID card
VaR idcard = $ ('. idnum'). Val ();
VaR idnum_error = $ ('. idnumerror ');
Idcard = trim (idcard. Replace (// G ,""));
If (idcard. Length = 18 ){

VaR a_idcard = idcard. Split (""); // obtain the ID card Array

// Call the method to determine whether the last verification bit is correct and whether the birthday is valid

If (isvaliditybrithby18idcard (idcard) & istruevalidatecodeby18idcard (a_idcard )){

Idnum_error.css ('visibility ', 'den den ');
// Consistencyvalidate ();
Return true;
} Else {
Idnum_error.css ('visibility ', 'visable ');
Return false;
}
} Else {
Idnum_error.css ('visibility ', 'visable ');
Return false;
}
}
// Remove the leading and trailing spaces of the string
Function trim (STR ){
Return Str. Replace (/(^ \ s *) | (\ s * $)/g ,"");
}
/**
* Check whether the last verification digit is correct when the ID card number is 18
* @ Param a_idcard ID card number Array
* @ Return
*/
Function istruevalidatecodeby18idcard (a_idcard ){

VaR sum = 0; // declare the weighted sum variable
If (a_idcard [17]. tolowercase () = 'X '){
A_idcard [17] = 10; // Replace the last x verification code with 10 for subsequent operations
}
For (VAR I = 0; I <17; I ++ ){
Sum + = wi [I] * a_idcard [I]; // weighted sum
}
Valcodeposition = sum % 11; // the location where the verification code is obtained
If (a_idcard [17] = validecode [valcodeposition]) {
Return true;
} Else {
Return false;
}

}

/**
* Verify whether the birthday in the 18-digit ID card number is a valid birthday.
* @ Param idcard 18-digit book id card string
* @ Return
*/
Function isvaliditybrithby18idcard (idcard18 ){
VaR year = idcard18.substring (6, 10 );
VaR month = idcard18.substring (10, 12 );
VaR day = idcard18.substring (12, 14 );
VaR temp_date = new date (year, parsefloat (month)-1, parsefloat (day ));
// Getfullyear () is used to obtain the year to avoid the millennium bug.
If (temp_date.getfullyear ()! = Parsefloat (year)
| Temp_date.getmonth ()! = Parsefloat (month)-1
| Temp_date.getdate ()! = Parsefloat (day )){
Return false;
} Else {
Return true;
}
}
/**
* Identify a male or female by ID card
* @ Param idcard: 15/18-digit ID card number
* @ Return 'female '-female, 'male'-male
*/
Function maleorfemalbyidcard (idcard ){
Idcard = trim (idcard. Replace (// G, ""); // process the ID card number. Contains spaces between characters.
If (idcard. Length = 15 ){
If (idcard. substring (14,15) % 2 = 0 ){
Return 'female ';
} Else {
Return 'male ';
}
} Else if (idcard. Length = 18 ){
If (idcard. substring (14,17) % 2 = 0 ){
Return 'female ';
} Else {
Return 'male ';
}
} Else {
Return NULL;
}
// The input characters can be processed as arrays.
// If (idcard. Length = 15 ){
// Alert (idcard [13]);
// If (idcard [13] % 2 = 0 ){
// Return 'female ';
//} Else {
// Return 'male ';
//}
//} Else if (idcard. Length = 18 ){
// Alert (idcard [16]);
// If (idcard [16] % 2 = 0 ){
// Return 'female ';
//} Else {
// Return 'male ';
//}
//} Else {
// Return NULL;
//}
}