Options style support customize & update README.md

[GeoffZhu]

fix issue #220

[yesmeck]

Could you add a testcase?

[afc163]

how about a function?

[GeoffZhu]

Rewrite typeof as a function typeof() ? || Define function isString?

[afc163]

I mean

style: (name) => `${name}/style`

style: (name) => `${name}/style/css`

like #163

[GeoffZhu]

fixed

[GeoffZhu]

Testcase added

[GeoffZhu]

@yesmeck @afc163
I try 1.7.0 in my project. There was a serious mistake. I'm so sorry about than.

Reason:
In Babel docs of .babelrc

All Babel API options except the callbacks are allowed (because .babelrc files are serialized as JSON5).

So, make option style as a Function lead to some bugs. Babel will throw Error 'Not parse JSON'.

Can I create a new pr fix this bug？

[yesmeck]

It's obvious, you can not write a function in JSON, how do you plan to fix it?

[GeoffZhu]

@yesmeck Back to my previous commit 3590aca

if (style === true) {
  addSideEffect(file.path, `${path}/style`);
} else if (typeof style === 'string') {
  addSideEffect(file.path, `${path}/style/${style}`);
}

If you don't accept it, I will find another way.

[yesmeck]

Though you can not write function in JSON, you can still use function in the config of webpack for babel-loader, so I think it's ok to keep it as it is.

[GeoffZhu]

OK, thx