replace string with regular expression got wrong output

[atoms18]

What version of Bun is running?

1.0.1+31aec4ebe325982fc0ef27498984b0ad9969162b

What platform is your computer?

Darwin 22.5.0 arm64 arm

What steps can reproduce the bug?

when try to match a regular expression with these emoji and replace it with string

let str = "🔴11 54 / 10,000";
str = str.replace(/[🔵🔴,]+/g, '');
console.log(str);

What is the expected behavior?

the outputs should be:
11 54 / 10000
instead of
🔴 / 0000

What do you see instead?

No response

Additional information

No response

[Electroid]

@dylan-conway Any ideas here?

[dylan-conway]

This is the transpiled source:

let str = "\uD83D\uDD3411 54 / 10,000";
str = str.replace(/[\u{1f535}\u{1f534},]+/g, "");
console.log(str);

Using the regex constructor with a string works, new RegExp("[🔵🔴,]+", "g");, so we probably aren't encoding /.../ correctly