input-validators-js

A simple npm-package for validating user input like email, password-strength, date-format and so on.

Installation

With npm:

npm i input-validators-js

With yarn:

yarn add input-validators-js

Including input-validators-js in your project:

const validate = require("input-validators-js");
...

Validating email formatting

validate.validateEmail(emailString);

This will return true if the string passes the email-regex and false if not.

Validating names

validate.validateName(nameString);  

This will return true if the string passes the name-regex and false if not.

Validating password strength

This function is used to check password strength based on characters present in the passed string.

Strong password strength regex

^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!@#$%^&*])(?=.{8,})

Medium password strength regex

^(((?=.*[a-z])(?=.*[A-Z]))|((?=.*[a-z])(?=.*[0-9]))|((?=.*[A-Z])(?=.*[0-9])))(?=.{6,})

Passing the password through

validate.validatePasswordStrength(passwordString);  

will return one of three possible objects:

passwordAccepptable: true, passwordStrength: "strong"
passwordAccepptable: true, passwordStrength: "medium"
passwordAccepptable: false, passwordStrength: "weak"

Validating date-formatting DD/MM/YYYY

validate.validateDateFormatDayMonthYear(dateString);

This will return true if the string passes the date-regex and false if not.

Validating date-formatting YYYY/MM/DD

validate.validateDateFormatYearMonthDay(dateString, format);

Accepts two parameters:

dateString - This is the date which is being validated. format - number 0, 1, or 2 which changes formatting regex accordingly:

• 0- YYYY/M/D and YYYY.M.D
• 1- YYYY-MM-DD and YYYY-M-D
• 2- YYYY-MM-DD

Will return true or false if dateString passes regex.

Validating type string

validate.validateTypeString(string);

This will return true if the object passed is a string and false if not.

Validating type number

validate.validateTypeNumber(number);

This will return true if the object passed is a number and false if not.