gistfile1.txt

function isLetter(str) {
  return str.length === 1 && str.match(/[a-z]/i);
}

function hasUppercase(input) {
    for (var i = 0; i < input.length; i++) {
        if (isLetter(input[i]) == input[i].toUpperCase()) {
            return true;
        }
    }
    return false;
}

function hasLowercase(input) {
    for (var i = 0; i < input.length; i++) {
        if (isLetter(input[i]) == input[i].toLowerCase()) {
            return true;
        }
    }
    return false;
}

function isLongEnough(input) {
    if (input.length >= 8) {
        return true;
    } else {
        return false;
    }
}

function hasSpecialCharacter(input) {
    var specialCharacters = ['!', '@', '#', '$', '%', '^', '&', '*'];
    for (var i = 0; i < input.length; i++) {
        for (var j = 0; j < specialCharacters.length; j++) {
            if (input[i] == specialCharacters[j]) {
                return true;
            }
        }
    }
}

function isPasswordValid(input) {
    if (hasUppercase(input) === true && hasLowercase(input) === true && isLongEnough(input) === true && hasSpecialCharacter(input) === true) {
        console.log('The password is valid.');
    } else if (!hasUppercase(input)) {
        console.log('The password needs a capital letter.');
    } else if (!hasLowercase(input)) {
        console.log('The password needs a lower case letter.');
    }
  
    if (!isLongEnough(input)) {
        console.log('The password needs at least 8 letters.');
    }
    if (!hasSpecialCharacter(input)) {
        console.log('The password should have a special character');
    }
}
isPasswordValid('pPpppppppppp@');