Decode UTF-8 with Javascript

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To answer the original question: here is how you decode utf-8 in javascript:

http://ecmanaut.blogspot.ca/2006/07/encoding-decoding-utf8-in-javascript.html

Specifically,

function encode_utf8(s) {
  return unescape(encodeURIComponent(s));
}

function decode_utf8(s) {
  return decodeURIComponent(escape(s));
}

We have been using this in our production code for 6 years, and it has worked flawlessly.

Note, however, that escape() and unescape() are deprecated. See this.

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