Validators

Multiple set of validators for validating codes used in Indian system such as PAN, AADHAR, GSTIN etc.

Installation

NodeJS

    npm i @ashwinbande/validators
    // or
    yarn add @ashwinbande/validators

In your .js file add following code

    const isValid = require('@ashwinbande/validators')

CDN

Add <script src="https://cdn.jsdelivr.net/npm/@ashwinbande/validators@1/index.min.js"></script> at beginning of html file. then isValid will be available globally.

Usage

1. GSTIN (Goods and Service Tax Indentification Number):

validates => Input must be in format ##AAAAA####A#Z(#/A), and have length 15 and last char is Valid checksum.

const invalid = '09AAACT2727Q1ZA'
const valid = '09AAACT2727Q1ZU'
isValid.gstin(invalid) /* returns false */
isValid.gstin(valid)   /* returns true */

You can also calculate the checksum of a GSTIN by -

isValid.gstin.getValidDigit('09AAACT2727Q1ZA') /* return U */
isValid.gstin.getValidDigit('09AAACT2727Q1Z')  /* return U */

Note that only first 14 characters are required and next are ignored.

2. PAN (Permanent Account Number):

validates => Input must be in format AAAAA####A, and have length 10 and fourth character must be either A, B, C, F, G, H, L, J, P, T, E.

isValid.pan('AAACT2727Q')  /* returns true  */
isValid.pan('11ACT2727Q')  /* returns false */

You can also obtain PAN holder type by -

isValid.pan.holder('AAACT2727Q')  /* returns 'Company'  */

possible values are -

A: Association Of Persons (AOP),
B: Body Of Individuals (BOI),
C: Company,
F: Firm,
G: Government,
H: Hindu Undivided Family (HUF),
L: Local Authority,
J: Artificial Juridical Person,
P: Individual (Proprietor),
T: Trust (AOP),
E: Limited Liability Partnership (LLP),

3. TAN (Tax Deduction and Collection Account Number):

validates => Input must be in format AAAA#####A, and have length 10 and last char is Valid checksum.

const invalid = 'MUMT07207A'
const valid = 'MUMT07207E'
isValid.tan(invalid) /* returns false */
isValid.tan(valid)   /* returns true  */

4. AADHAR (Issued by - Unique Identification Authority of India):

validates => Input must be in format ############, and have length 12 and last char is Valid checksum.

const invalid = '499128665246'
const valid =   '499118665246'
isValid.aadhar(invalid) /* returns false */
isValid.aadhar(valid)   /* returns true  */

You can also calculate the checksum of a AADHAR by -

isValid.aadhar.getValidDigit('49911866524') /* return 6 */

5. IMEI (International Mobile Equipment Identity):

validates => Input must be in format ###############, and have length 15 and last digit is Valid checksum.

const invalid = '357917092311929'
const valid =   '357917052311929'
isValid.imei(invalid) /* returns false */
isValid.imei(valid)   /* returns true  */

6. Credit / Debit Card:

validates => Input must be in format ##############(##), and have length 14 or 15 or 16 and last digit is Valid checksum.

const invalid = '5103720017095346'
const valid =   '5103720017096346'
isValid.card(invalid) /* returns false */
isValid.card(valid)   /* returns true  */

7. IFSC (Indian Financial System Code):

validates => Input must be in format AAAA#######, and have length 11.

const invalid = 'SBIN000I234'
const valid =   'SBIN0001234'
isValid.ifsc(invalid) /* returns false */
isValid.ifsc(valid)   /* returns true  */

8. ESIC Number (Employees State Insurance Corporation Number):

validates => Input must be in format #################, and have length 17.

const invalid = '3100123456A000001'
const valid =   '31001234560000001'
isValid.esic(invalid) /* returns false */
isValid.esic(valid)   /* returns true  */

9. UAN (Universal Account Number):

validates => Input must be in format ############, and have length 12.

const invalid = '11122Z333444'
const valid =   '111222333444'
isValid.esic(invalid) /* returns false */
isValid.esic(valid)   /* returns true  */

10. Mobile Number:

validates => Input must be in format ##########, and have length 10.

const invalid = '99887766A5'
const valid =   '9988776655'
isValid.mobile(invalid) /* returns false */
isValid.mobile(valid)   /* returns true  */

11. PIN CODE (Postal Identification Number):

validates => Input must be in format ######, and have length 6.

const invalid = '44520'
const valid =   '445206'
isValid.pinCode(invalid) /* returns false */
isValid.pinCode(valid)   /* returns true  */

12. HSN (Harmonized System Nomenclature):

validates => Input must be in format ##(##)(##)(##), and have length 2 or 4 or 6 or 8.

hsn('4')        /* returns false */
hsn('445')      /* returns false */
hsn('44556')    /* returns false */
hsn('445566A4') /* returns false */
hsn('44')       /* returns true  */
hsn('4455')     /* returns true  */
hsn('445566')   /* returns true  */
hsn('44556634') /* returns true  */

13. SAC (Services Accounting Code):

validates => Input must be in format ########, and have length 8.

hsn('445566A4') /* returns false */
hsn('44556634') /* returns true  */

For Feature requests and Error reporting:

create an issue on github repository or contact directly to [email protected]

**Don't Forget to add a star to github repo. Please provide your comments, suggest improvements and other codes which are not covered in this package.