Broken parsing from DraftJS content to Markdown when adding an emoji after bolded text

[aroc]

What is happening?

When adding an emoji specifically after bolded text in DraftJS, the conversion to markdown breaks.

Here is a full reproduction:
https://repl.it/@EricAnderson7/SweetSneakyExecutable#index.js

[aroc]

Also here is the same example but with the single emoji replace with a single letter. The markdown bolding characters are properly placed in this case:
https://repl.it/@EricAnderson7/SweetSneakyExecutable-1

[aroc]

Ok it turns out we can simply use Array.from(block.text) instead of block.text.split(''). Of course, this means no support for Internet Explorer as per MDN.

[kadikraman]

Nice, thanks for posting the code examples! Using Array.from resolves it like you said. I'll raise a PR for it.

As for IE - good spot! The latest version doesn't support IE11 either as there are already instances of Array.from in the bundle, so this isn't a regression.