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How to use the isStrongPassword function from validator

Find comprehensive JavaScript validator.isStrongPassword code examples handpicked from public code repositorys.

validator.isStrongPassword is a function provided by the validator library that checks whether a given string meets strong password criteria.

User.js

GitHub: AnikHaque/Inventory-management-system-backend-using-mongoose

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password: {
  type: String,
  required: [true, "Password is required"],
  validate: {
    validator: (value) =>
      validator.isStrongPassword(value, {
        minLength: 6,
        minLowercase: 3,
        minNumbers: 1,
        minUppercase: 1,

CustomersController.js

GitHub: HoChiTai/helendo

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async register(req, res, next) {
    const data = req.body;
    if (
        validator.isAlphanumeric(data.userName) &&
        validator.isLength(data.userName, { min: 3, max: 16 }) &&
        validator.isStrongPassword(data.password) &&
        validator.isAlphanumeric(data.name) &&
        validator.isLength(data.name, { min: 3, max: 16 }) &&
        validator.isMobilePhone(data.phone, "vi-VN")
    ) {

How does validator.isStrongPassword work?

validator.isStrongPassword is a function provided by the validator library that checks whether a given string meets strong password criteria. The function takes in two arguments: the string to test and an options object that specifies the criteria for a strong password. By default, isStrongPassword checks whether the string contains at least one uppercase letter, one lowercase letter, one number, and one special character, and whether the length of the string is at least 8 characters. The options object can be used to customize these criteria by specifying the following properties: minLength - the minimum length of the string maxLength - the maximum length of the string minLowercase - the minimum number of lowercase letters minUppercase - the minimum number of uppercase letters minNumbers - the minimum number of digits minSymbols - the minimum number of special characters When called, isStrongPassword checks whether the string meets the specified criteria, and returns true if it does and false if it does not. Overall, validator.isStrongPassword provides a simple way to check whether a given string meets strong password criteria, which can be useful for validating passwords in a web application.

auth.controller.js

GitHub: impapy/Ecommerce-API

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const message="Welcome as an Amazon member"
//SIGN UP 
exports.signUp = (req, res, next) => {
    console.log(req.body)
    let validEmail = validator.isEmail(req.body.email);
    let validPass = validator.isStrongPassword(req.body.password);
    let validPhone = validator.isMobilePhone(req.body.phone, ['ar-EG']);
    // if (validEmail && validPass && validPhone) {
        // console.log(req.body)
        User.findOne({ email: req.body.email })

User.js

GitHub: AnikKDev/hero-rider-server

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validator: function (value) {
  if (this.role === "admin") {
    // skip password validation for admin users
    return true;
  }
  return validator.isStrongPassword(value, {
    minLength: 6,
    minLowercase: 3,
    minNumbers: 1,
    minUppercase: 1,

Ai Example

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const validator = require("validator");

const password1 = "weakpassword";
const password2 = "Strongpassword123!";

const options = {
  minLength: 8,
  minLowercase: 1,
  minUppercase: 1,
  minNumbers: 1,
  minSymbols: 1,
};

console.log(validator.isStrongPassword(password1)); // false
console.log(validator.isStrongPassword(password2, options)); // true

In this example, we use validator.isStrongPassword to check whether two strings meet strong password criteria. We first import the validator library using the require function and assign it to the variable validator. We create two passwords, password1 and password2. We also create an options object that specifies the criteria for a strong password, including a minimum length of 8 characters and minimum requirements for lowercase letters, uppercase letters, numbers, and special characters. We call validator.isStrongPassword twice, passing in password1 and password2 as the first argument, and options as the second argument for the second call. The first call returns false because password1 does not meet the specified criteria for a strong password. The second call returns true because password2 meets the specified criteria for a strong password. Note that in order to use validator.isStrongPassword, you need to have the validator library installed and imported in your application.

userController.js

GitHub: LauraGrenier93/patisserie

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const oldUser = new User(user.gender, user.name, user.firstname, user.email, user.password, user.date_cookie, new Date().toISOString().slice(0, 10), user.admin);
if (!bcrypt.compareSync(oldPassword, oldUser.password)) {
  res.status(401).send({ message: `Authentication failed, please verify your information.` });
  return;
}
if (newPassword && validator.isStrongPassword(newPassword) && newPassword !== newPasswordConfirm) {
  res.status(401).send({ message: 'Confirmation of new password is failed' });
  return;
}
oldUser.id = escape(user.id);

User.js

GitHub: AbdulMalek-swe/job_portal_server_site

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password: {
  type: String,
  // required: [true, "Password is required"],
  // validate: {
  //   validator: (value) =>
  //     validator.isStrongPassword(value, {
  //       minLength: 6,
  //       minLowercase: 3,
  //       minNumbers: 1,

User.modules.js

GitHub: gmshimon/inventory-backend-nodejs

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password:{
    type:String,
    required:[true,"Please provide password"],
    validate:{
        validator:(value)=>{
            validator.isStrongPassword(value,{
                minLength:6,
                minLowercase:3,
                minNumber:1,
                nimUppercase:1,

+ 8 other calls in file

Validation.js

GitHub: SajjadReactDeveloper/Shaadi-Meetup

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    return validator.isEmail(email);
}


// Validate password
exports.validatePassword = (password) => {
    return validator.isStrongPassword(password);
}


// Validate name

bundle.js

GitHub: cswitzer/cswitzer.github.io

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function validateEmail(email) {
  return validator.isEmail(email)
}


function validatePassword(password) {
  return validator.isStrongPassword(password, {
    minLength: 8,
    minLowercase: 1,
    minUppercase: 1,
    minNumbers: 1,

ok.js

GitHub: Jkenyut/Staycurios_ShowCase_Express-js

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}


console.log(validator.ltrim(password));
console.log(validator.isEmpty(password));
console.log(
  validator.isStrongPassword(password, {
    minLength: 8,
    minLowercase: 1,
    minUppercase: 1,
    minSymbols: 1,

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