'Selector' option throws TypeError about postcss-calc HOT 5 CLOSED

The issue appears to be related to selectors like:
abbr[title]
This situation exists in packages like normalize.css (https://github.com/necolas/normalize.css/blob/master/normalize.css).

Possible fix would be to test if node.value is undefined in transform.js
if (node.type === 'attribute' && node.value !== undefined) {

I'm not familiar enough with postcss to know if this is the best fix though.

from postcss-calc.

Thank you for answer. The first option is correct fix the issue for me. But we often inevitably encounter code like below:

button[disabled] {}

@mjschlot you should submit a pr and wait merged by author. 👍

from postcss-calc.

I has same issue. Does anyone know how to solve this problem ?

from postcss-calc.

@wenkanglin I know of two options:

• Avoid the use of attribute selectors that do not have a value (e.g. abbr[title])
• Or, the code needs to be updated like I suggested in my last post. I would submit a pull request but I really don't know if my fix the best way to address this or not.

from postcss-calc.

Fixed in v6.0.1

from postcss-calc.