valf

valf can validate your

• email
• password
  • calculate strength
  • provide appropriate requirements
• name
• age with specified conditions
• numbers
• strings

Instalation

 $ npm i valf

Alternatively you can use yarn

 $ yarn add valf

Link to npm: valf

Usage

Validate Email

const { validateEmail } = require("valf");

validateEmail("[email protected]");
// return true

validateEmail("langeshgmail.com");
// return false

Validate Password

const { validatePassword } = require("valf");

let isValid = validatePassword("hello");
//  isvalid => {
//      requirements: [
//     "Length is too short",
//     "Required a uppercase character",
//     "Required a digit",
//     "Required a symbol",
//   ],
//   strength : 0
// }

isValid = validatePassword("Hello@123");
// isvalid => {
//     requirements :[],
//     strength : 100,
// }

// * You can pass optional email or name that must not be present in the given password
isValid = validatePassword("Hello@123", "[email protected]");
// isValid => {
//   requirements: ["Remove your name or email in the password"],
//   strength: 80,
// }

isValid = validatePassword("Hello@123", "hello");
// isValid => {
//   requirements: ["Remove your name or email in the password"],
//   strength: 80,
// }

Validate age

const { validateAge } = require("valf");

validateAge(24);
// return true

validateAge(-20);
// return false

validateAge(140);
// return false

validateAge(age, { $gt: 18 });
// return true if age is greater than 18

validateAge(age, { $lt: 20 });
// return true if age is less than 20

Options

• $gt greter than
• $lt less than
• $gte greater than or equal to
• $lte less than or equal to
• $eq equal to

Validate Name

Should contain

• only alphabets
• numbers
• underscore
• hyphen

const { validateName } = require("valf");

validateName("langesh");
// return true

validateName("__Langesh__");

validateName("langesh@");
// return false

Validate Mobile Numbers

Syntax:

validateMobileNumber(countryCode, number);

Note:

Only Indian numbers are allowed.

Other formats are comming soon.

const { validateMobileNumber } = require("valf");

validateMobileNumber("IN", 7387634562);
// return true

validateMobileNumber("IN", 4516273893);
// return false

Some other valid formats:

• 9883443344
• 09883443344
• 919883443344
• 0919883443344
• +919883443344
• +91-9883443344
• 0091-9883443344
• +91 -9883443344
• +91- 9883443344
• +91 - 9883443344
• 0091 - 9883443344

Other Methods

isdigit(string); // checks whether a string contains digit or not

isalpha(string); // checks whether a string contains alphabets or not

isalnum(string); // checks whether a string contains alphabets or digits