Wrong amount of arguments

[clubajax]

When I try to make a simple class:

dcl({constructor:function(){}});

I get a very cryptic error, "Uncaught TypeError: Cannot read property 'constructor' of undefined"

One of two things would help here: handle that use case (my preferred), or do a check for the correct arguments to throw a warning and log the object so it's easier to find the offender. I did this on line 19 in mini.js:

if(typeof superClass === 'object' && !props){
    var disp = superClass && superClass.declaredClass ? superClass.declaredClass : superClass;
    var msg = 'Wrong amount of arguments used for DCL';
    console.error(msg, superClass);
    throw new Error(msg);
}

[uhop]

It should be:

dcl(null, {constructor:function(){}});

In general it sounds like a good candidate for debug.js, which was specifically created to keep all useful debugging facilities separate.

[clubajax]

Yes, that would be good. Is there any reason to not create the class I showed? Why do you have to specifically show that you do not have any dependencies?

[uhop]

The reason is simple: it is hard to make a mistake in two-argument function. Bypassing a check for that saves on CPU time, space, and bandwidth.

[uhop]

Addressed in 2.0.