Strong Password

strong-password.js

$(document).ready(function() {
 
    $('#passwordInput, #confirmPasswordInput').on('keyup', function(e) {
 
        if($('#passwordInput').val() == '' && $('#confirmPasswordInput').val() == '')
        {
            $('#passwordStrength').removeClass().html('');
 
            return false;
        }
 
     if($('#passwordInput').val() != '' && $('#confirmPasswordInput').val() != '' && $('#passwordInput').val() != $('#confirmPasswordInput').val())
    	{
    		$('#passwordStrength').removeClass().addClass('alert alert-error').html('Passwords do not match!');
        	return false;
    	}
 
        // Must have capital letter, numbers and lowercase letters
        var strongRegex = new RegExp("^(?=.{8,})(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*\\W).*$", "g");
 
        // Must have either capitals and lowercase letters or lowercase and numbers
        var mediumRegex = new RegExp("^(?=.{7,})(((?=.*[A-Z])(?=.*[a-z]))|((?=.*[A-Z])(?=.*[0-9]))|((?=.*[a-z])(?=.*[0-9]))).*$", "g");
 
        // Must be at least 6 characters long
        var okRegex = new RegExp("(?=.{6,}).*", "g");
 
        if (okRegex.test($(this).val()) === false) {
            // If ok regex doesn't match the password
        	$('#passwordStrength').removeClass().addClass('alert alert-error').html('Password must be 6 characters long.');
 
        } else if (strongRegex.test($(this).val())) {
            // If reg ex matches strong password
            $('#passwordStrength').removeClass().addClass('alert alert-success').html('Good Password!');
        } else if (mediumRegex.test($(this).val())) {
            // If medium password matches the reg ex
            $('#passwordStrength').removeClass().addClass('alert alert-info').html('Make your password stronger with more capital letters, more numbers and special characters!');
        } else {
            // If password is ok
            $('#passwordStrength').removeClass().addClass('alert alert-error').html('Weak Password, try using numbers and capital letters.');
        }
        
        return true;
    });
});