Additional empty line in code block

[nomyfan]

There's always a new empty line(\n) in the end of the code block.

My markdown is below

hello world
~~~js
console.log('js')
~~~

The code above will get the children to be ["console.log('js')\n"] which I think the \n should not be existed.
This is a demo to reproduce.

[wooorm]

That’s how it works in markdown: https://spec.commonmark.org/dingus/?text=%60%60%60x%0Ay%0A%60%60%60.

And why in the readme that line ending is removed: https://github.com/remarkjs/react-markdown#use-custom-components-syntax-highlight.

I think it could be an issuer with react-syntax-highlighter. You might want to raise it there.