@URLEncode and the JavaScript equivalent!

JavaScript has many different encoding function with different approaches. Some of them does not encode all special characters.
escape() – does not encode: *@-_+./
encodeURI() – Does not encode: ,/?:@&=+$#

But encodeURIComponent() encodes all special characters! Link to W3SChool

@URLEncode(“ISO-8859-1;”,/?:@&=+$#”) will encode to the following string: “%2C%2F%3F%3A%40%26%3D%2B%24%23%22”
Which means that @URLEncode is similar to encodeURIComponent()!

But be warned @URLEncode/@URLDecode in standard uses “Domino” as decode type. “Domino” uses UTF-8 char set which will not work together with standard encoding on a  web page togehter with the JavaScript encode and decode functions . To work well with international characters use “ISO-8859-1”.

When it comes to encoding keep in mind that the decodeURI() function will skip decoding escaped characters which encodeURI() will not encode (at least in Firefox). @URLDecode and the JavaScript functions unescape() and decodeURIComponent() will decode all % escaped characters.

So decoding the string above will give the following result:

unescape() => ,/?:@&=+$#”
decodeURI() => %2C%2F%3F%3A%40%26%3D%2B%24%23″
decodeURIComponent() => ,/?:@&=+$#”

Conclusion:
@URLDecode will decode anything encoded with any of the JavaScript alternatives correctly.
@URLEncode will only be correctly encoded by the JavaScript functions unescape() and decodeURIComponent().

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