7-password-validator.js

/* 
Password Validation

Write a program that should check if each password in an array 
contains a valid password (see below for password criteria) and return a
new array with true or false booleans for whether that password was valid or not.

To be valid, a password must:
- Have at least 5 characters.
- Have at least one English uppercase letter (A-Z)
- Have at least one English lowercase letter (a-z)
- Have at least one number (0-9)
- Have at least one non-alphanumeric symbol ("!", "#", "$", "%", ".", "*", "&")

Passwords must not be any previous password in the passwords array. 

Example 1:
PreviousPassword = ["fhD8!yrjj", "ttkTu.wer3", "dvyyeyY!5", "qwbfj76%", "tytT3729."];

Expected Result:
PasswordValidationResult=  [false, false, false, false, true]

*/

//  const passwords2 = ["tf1%", "Pl7nty!", "Ja4i", "s4hajsaUA**&&", "pl3nty!"];
function validatePasswords(arr) {
    let bigArrayOfChar = arr.map(element => element.split('')); //map returns a new array
    let result = bigArrayOfChar.map(index => index.some(isNum) && index.some(isUpperCase)
     && index.some(isLowerCase) && index.some(isSymbols) && index.length >=5);
    return result;
}
function isNum(word) {
    let newWord = word.split('');
    let checkLetter = newWord.some(element => element >= 0 && element <= 9); //some returns boolean
    return checkLetter;
}
function isUpperCase(word) {
    let newWord = word.split('');
    let checkUpperCase = newWord.some(element => element >= 'A' && element <= 'Z');
    return checkUpperCase;
}
function isLowerCase(word) {
    let newWord = word.split('');
    let checkLowerCase = newWord.some(element => element >= 'a' && element <= 'z');
    return checkLowerCase;
}
function isSymbols(word){
  let newWord = word.split(''); //output ["w", "o", "r", "d"]
  let result = newWord.some(element => element === '!' || element === '#' || element === '.' || element === '$' || element === '%');
  return result;
}
 

/* ======= TESTS - DO NOT MODIFY ===== */

const passwords1 = ["Se%5", "TktE.TJTU", "384#HsHF", "dvyyeyy!5", "tryT3729"]
const passwords2 = ["StUFf27%", "Pl3nty!", "Jai33", "shajsaUA**&&", "Pl3nty"]

const util = require('util');

function test(test_name, actual, expected) {
    let status;
    if (util.isDeepStrictEqual(actual, expected)) {
        status = "PASSED";
    } else {
        status = `FAILED: expected: ${util.inspect(expected)} but your function returned: ${util.inspect(actual)}`;
    }

    console.log(`${test_name}: ${status}`);
}

test(
  "validatePasswords function works - case 1",
  validatePasswords(passwords1),
  [false, false, true, false, false]
 );

test(
  "validatePasswords function works - case 2",
  validatePasswords(passwords2),
  [true, true, false, false, false]
);