Javascript decodeURI(Component) malformed uri exception

Question

I entered the following in Chrome\'s console:

decodeURIComponent(\'a%AFc\');

Instead of resulting to a0xAFc, it caused a URIError

Answer 1

%AF is not a character on his own but part of Unicode sequence (MACRON - %C2%AF).

%AF wasn't produced by encodeURIComponent but something like escape, so it can be decoded by unescape.

What you probably need is decodeURIComponent('%C2%AF')