I'm not sure what this is called so I'm having trouble searching for it. How can I decode a string with unicode from http\u00253A\u00252F\u00252Fexample.com
to http://example.com
with JavaScript? I tried unescape
, decodeURI
, and decodeURIComponent
so I guess the only thing left is string replace.
EDIT: The string is not typed, but rather a substring from another piece of code. So to solve the problem you have to start with something like this:
var s = 'http\\u00253A\\u00252F\\u00252Fexample.com';
I hope that shows why unescape() doesn't work.
Edit (2017-10-12):
@MechaLynx and @Kevin-Weber note that unescape()
is deprecated from non-browser environments and does not exist in TypeScript. decodeURIComponent
is a drop-in replacement. For broader compatibility, use the below instead:
decodeURIComponent(JSON.parse('"http\\u00253A\\u00252F\\u00252Fexample.com"'));
> 'http://example.com'
Original answer:
unescape(JSON.parse('"http\\u00253A\\u00252F\\u00252Fexample.com"'));
> 'http://example.com'
You can offload all the work to JSON.parse