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#2299 - Strong Password Checker II
Problem Description
A password is said to be strong if it satisfies all the following criteria:
- It has at least 8 characters.
- It contains at least one lowercase letter.
- It contains at least one uppercase letter.
- It contains at least one digit.
- It contains at least one special character. The special characters are the characters in the following string: "!@#$%^&*()-+".
- It does not contain 2 of the same character in adjacent positions (i.e., "aab" violates this condition, but "aba" does not).
Given a string password, return true if it is a strong password. Otherwise, return false.
Solution
/**
* @param {string} password
* @return {boolean}
*/
var strongPasswordCheckerII = function(password) {
if (password.length < 8) return false;
let hasLower = false;
let hasUpper = false;
let hasDigit = false;
let hasSpecial = false;
const set = new Set(['!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '-', '+']);
for (let i = 0; i < password.length; i++) {
if (i > 0 && password[i] === password[i - 1]) return false;
const char = password[i];
if (/[a-z]/.test(char)) hasLower = true;
else if (/[A-Z]/.test(char)) hasUpper = true;
else if (/\d/.test(char)) hasDigit = true;
else if (set.has(char)) hasSpecial = true;
}
return hasLower && hasUpper && hasDigit && hasSpecial;
};