Config variables set to 0 won't bind if there is a default

[lilasquared]

There are places such as line 575:

if (__padding_right) {
  return __padding_right;
}

Where if 0 is entered in the config it will skip because zero parses as false in an if statement. Changing lines like this to:

if (typeof __padding_right != 'undefined') {
  return __padding_right;
}

Should resolve the issue. If I knew enough about GitHub and pull requests and such I would make the change but I am a newb =]

[yuvii]

Hi. I'm not @masayuki0812 but I'm trying to help him out.

Yes, this is a problem with a lot of user-defined options in c3. It will probably be resolved in the upcoming refactoring. If you'd like to contribute, please join the c3 google group:
https://groups.google.com/forum/?hl=en#!forum/c3js

[masayuki0812]

Hi, Thank you for looking into this. You're right. I fixed to accept 0.
As @yuvii wrote, We will start refactoring in the near future. So please join if you'd like.

[masayuki0812]

I'll close this issue. Please open a new topic in google group if needed. Thanks.
https://groups.google.com/forum/#!forum/c3js