JS password strength test works, but I want to consider unique characters

Question

I have a function in JavaScript that increases the password strength bar. Currently, it only refers to the length of the strings, and I want it to increase more if it has unique characters and a combination of upper and lower case characters. Below is the current function that works.

var bar = $('#progressbar div');
var password1 = $("#txtNewPassword");
var len = password1.val().length;
bar.css('width', len * 10 + '%');
if (len * 10 < 50) 
{
    bar.css('background', 'red');
} 
else if(len * 10 > 50 && len * 10 < 100) 
{
    bar.css('background', 'orange');
} 
else if (len * 10 >= 100)
{
    bar.css('background', 'green');
    $('#submitPC').removeAttr('disabled');
}

I also have a submit button that is on and off when there is enough power. I want it to be the same as it is now, but with new additions. below is the add and remove attribute.

if (len * 10 < 100 || password != confirmPassword) 
{
    $('#submitPC').attr('disabled', 'disabled');
} 
else 
{
    $('#submitPC').removeAttr('disabled');
}

I suggested that I would use the variable set in each conditional expression, which would allow us to obey the dependence on strength, and not just that length.

if (blnStrength = true && password != confirmPassword) 
{
    $('#submitPC').attr('disabled', 'disabled');
} 
else 
{
    $('#submitPC').removeAttr('disabled');
}  

, 100%, 1 . 1234567890 abcdefghij , . , .

at least 1 number Ucase or Lcase Kieran12345 - K13r4NVen1s0N

Answer 1

, , RegExp.

, :

hasdigit = /[0-9]/.test(password);

Check upper and lower case evenly:

hasdifferentcase = /[a-z]/.test(password) && /[A-Z]/.test(password);