Password Generator

//Random Password Generator

function generatePassword(passwordLength, includeSmallLetters, includeCapitalLetters, includeNumbers, includeSpecialCharecters) {

    let allowedPassword = "";
    let password = "";

    allowedPassword += includeSmallLetters ? "abcdefghijklmnopqrstuvwxyz" : "";
    allowedPassword += includeCapitalLetters ? "ABCDEFGHIJKLMNOPQRSTUVWXYZ" : "";
    allowedPassword += includeNumbers ? "0123456789" : "";
    allowedPassword += includeSpecialCharecters ? "!@#$%^&*()_+=/*-" : "";


    if(!allowedPassword.length) {
        console.log(`You must select at least 1 set of charecters.`);
    }

    if(passwordLength == 0) {
        console.log(`Length of the password must be positive.`);

    }

    for(let i=0; i<passwordLength; i++) {
        rand = Math.floor(Math.random()*allowedPassword.length);
        password += allowedPassword.charAt(rand);
    }
    
    console.log(`Generated Password: ${password}`);
}

let passwordLength = 10;

let includeSmallLetters = true;
let includeCapitalLetters = true;
let includeNumbers = true;
let includeSpecialCharecters = true;

generatePassword(passwordLength, includeSmallLetters, includeCapitalLetters, includeNumbers, includeSpecialCharecters);