JavaScript character normalization

Question

I'm using Google Translate API, and if I try to translate Mc Donald's this is what I get as a result:

Mc Donald's

How can I translate ' to ' -- in JavaScript -- and so on for any other numeric character reference? Thanks!

Answer 1

Check those two:

Javascript equivalent for PHP's html_entity_decode

And its dependence:

Javascript equivalent for PHP's get_html_translation_table

Answer 2

JS libraries often have helper api's for this, Prototype for example has its unescapeHTML() function on String that works perfect, notice the examples:

http://prototypejs.org/api/string/unescapeHTML

Answer 3

Shouldn't something like this do it?

'Mc Donald's'.replace(/&#(\d+);/g, function(m, g) {
 return String.fromCharCode(g);
});