JavaScript - string regex backreferences

Question

You can backreference like this in JavaScript:

var str = \"123 $test 123\";
str = str.replace(/(\\$)([a-z]+)/gi, \"$2\");

This would (quite

Answer 1

Note: Previous answer was missing some code. It's now fixed + example.

---

I needed something a bit more flexible for a regex replace to decode the unicode in my incoming JSON data:

var text = "some string with an encoded 's' in it";

text.replace(/&#(\d+);/g, function() {
  return String.fromCharCode(arguments[1]);
});

// "some string with an encoded 's' in it"