index.js:32 Error: Password is empty.

an error with empty string

Yep, there's a condition in this package that throws Error if the password is empty :)

Lines 2 to 4 in f08e978

    
           if (!password) { 
        
             throw new Error("Password is empty."); 
        
           }

I would suggest, for now, is to create an condition that checks if your input password is empty or not. :)

if(inputPass){
    console.log(passwordStrength(inputPass).value);
}

yes, maybe it is better to return 0, if not the app crashes.