为什么我会为此功能获得双控制台消息？

Question

I have the following function:

var checkNameLenght = function(name,nameLenght,allowedLenght,defaultName) {

    var result;

    if(!(nameLenght <= allowedLenght) || !(/[^a-z]/i.test(name))) {
        result = name; 
    }
        else {
            if(opts.debug == true) {
                console.log(name+' is to long or contains special characters / numbers | Please choose a name shorter than '+allowedLenght+' characters or remove any character / number');
            }
            result = defaultName;
        }

    return result;

}

I use it to check the length of a string ( in my case the value of an input ) and if it contains any special characters or numbers.

I use it like so:

var input = 'Somevalue';

checkNameLenght(input ,input.length,16,'Username');

The only thing is that if the input string contains some of the above conditions than the console will output the message twice.

Why is that happening ?

Answer 1

I have tested it and it works just fine. Are you sure you are not calling the function twice? And try to avoid whatever opts.debug does, just use plain old js with if(console)