Common regular Expressions Daquan, mobile phone, phone, email, ID card (the most stringent authentication), IP address, URL, date, etc., the general front of the JS verification

<script type= "Text/javascript" >
/*
* Mobile Phone number format
* Only numbers starting with 13, 15 and 18 are allowed.
* such as: 13012345678, 15929224344, 18201234676
*/
var regmobile=/^1[3,5,8]\d{9}$/;

/*
* Fixed phone number format
* Because the fixed phone format is more complex, the situation is more, the main verification of the following types
* such as: 010-12345678, 0912-1234567, (010)-12345678, (0912) 1234567, (010) 12345678, (0912)-1234567, 01012345678, 09121234567
*/
var regphone=/^ (^0\d{2}-?\d{8}$) | (^0\d{3}-?\d{7}$) | (^< Span id= "mathjax-span-2" class= "Mrow" >0 \d2 -?\d{8}$) | (^0\d 3 -?\d{7}$) $/;

/*
 * email address
 * such as: [email protected] , Span class= "__cf_email__" data-cfemail= "721e1b5f011b324041445c1c1706" >[email protected] , [email protected]
 */
var regemail=/^ ([a-za-z0-9]+[_|\-|\.]?) *[a-za-z0-9][email protected] ([a-za-z0-9]+[_|\-|\.]?) *[a-za-z0-9]+ (\.[ a-za-z]{2,3}) +$/;

/*
 * ID 15-bit encoding rules: DDDDDD YYMMDD xx p
 * dddddd:6 bit area code
 * YYMMDD: Year of Birth (two year) month day, such as: 910215
 * XX: Sequential encoding, System generation, unable to determine
 * P: Gender, odd male, even female
 * 
 * ID 18-bit encoding rule: dddddd yyyymmdd xxx y
 * dddddd:6 Area code
 * YYYYMMDD: Year of birth (four-year) month day, such as: 19910215
 * XXX: Sequential encoding, System generation, indeterminate, odd male, even female
  * Y: Check code, this bit value can be calculated by the first 17 bits of the
 * 
 * the first 17 digits of the weighted factor are Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2]
 * Verify bit Y = [1, 0, 9, 8, 7, 6, 5, 4, 3, 2]
 * If the verification code is exactly 10, in order to ensure that the ID is 18 bits, the 18th bit will replace the
 * check bit meter with X Calculation formula: y_p = mod (∑ (AIXWI), one)
 * i is the ID card number 1 ... 17 bits; Y_p is a regular expression of the checksum array location
 */
Function Validateidcard (idcard) {
&NBSP;//15 bit and 18-bit ID number for the check code y
 var regidcard=/^ (^[1-9]\d{7} ((0\d) | ( 1[0-2]) (([0|1|2]\d) |3[0-1]) \d{3}$) | (^[1-9]\d{5}[1-9]\d{3} ((0\d) | ( 1[0-2]) (([0|1|2]\d) |3[0-1]) ((\d{4}) |\d{3}[xx]) $) $/;

If you pass this verification, the ID card is in the correct format, but the accuracy needs to be calculated
if (Regidcard.test (Idcard)) {
if (idcard.length==18) {
var idcardwi=new Array (7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); Save the first 17-bit weighting factor in an array
var idcardy=new Array (1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2); This is the 11-bit remainder, the verification code, which is divided by 11, which can also be saved as an array
var idcardwisum=0; Used to hold the sum of the first 17 digits after the weighted factor.
for (Var i=0;i<17;i++) {
Idcardwisum+=idcard.substring (i,i+1) *idcardwi[i];
}

Var idcardmod=idcardwisum%11;//calculates the position of the array where the checksum is located
var idcardlast=idcard.substring (17);//Get Last ID number

If it equals 2, then the check code is 10, the last digit of the ID number should be X
if (idcardmod==2) {
if (idcardlast== "X" | | idcardlast== "X") {
Alert ("Congratulations are verified!") ");
}else{
Alert ("ID card number is wrong! ");
}
}else{
Use the calculated verification code to match the last identity card number, if the same, the explanation passed, otherwise it is invalid ID number
if (Idcardlast==idcardy[idcardmod]) {
Alert ("Congratulations are verified!") ");
}else{
Alert ("ID card number is wrong! ");
}
}
}
}else{
Alert ("ID card format is incorrect!");
}
}

/*
* Can only be a positive integer
*/
var regnum=/^\d+$/;

/*
* ZIP Code
*/
var regpostcode=/^\d{6}$/;

/*
* User Name
* Can only be alphanumeric underline, and start with a letter (5-16 bit)
*/
var regusername=/^[a-za-z]\w{4,15}$/;

/*
* IP Address
* such as: 192.168.1.102
*/
var regip=/^ (([1-9]\d?) | (1\d{2}) | (2[0-4]\d) | (25[0-5])) \.) {3} ([1-9]\d?) | (1\d{2}) | (2[0-4]\d) | (25[0-5])) $/;

/*
* Can only be Chinese characters
*/
var regchinesechar=/^[\u4e00-\u9fa5]+$/;

/*
* URL
* Only three kinds of HTTP, HTTPS, FTP are allowed
* such as: http://www.baidu.com
*/
var regweb=/^ ([Hh][tt]{2}[pp][ss]?) | ([ff][tt][pp])) \:\/\/[ww]{3}\. [\w-]+\.\w{2,4} (\/.*)? $/;

/*
* Date Format Verification
* Because the date format is more, the following types are mainly verified
* 2012-05-14, 2012/05/6, 2012.5.14, 20120528
*/
var regdate=/^[1-9]\d{3} ([-|\/|\.])? ((0\d) | ([1-9]) | (1[0-2])) \1 (([0|1|2]\d) | ( [1-9]) | 3[0-1]) $/;

/*
* Methods to invoke the above regular expressions
* To verify the phone number format as an example
*/
function OnCheck (tel) {
if (Regmobile.test (tel)) {
Alert ("Congratulations are verified!") ");

}else{
Alert ("Not formatted correctly! ");
}
}
</script>

Common regular Expressions Daquan, mobile phone, phone, email, ID card (the most stringent authentication), IP address, URL, date, etc., the general front of the JS verification