Comments on: In the YUI 3 Gallery: Base64 and Y64 encoding

By: Nicholas C. Zakas

Nicholas C. Zakas — Thu, 08 Jul 2010 22:06:17 +0000

@Michael – Y64 is not the same as Base64 for URL. As stated in the post, Y64 is a variant we’ve been using at Yahoo! for a while. It’s nothing terribly revolutionary, but it does achieve the same goal of passing base64-encoded data in a URL.

By: Nicholas C. Zakas

Nicholas C. Zakas — Wed, 07 Jul 2010 17:32:31 +0000

@Sause – this module is for base64 encoding only. Data URI functionality is something that’s built into the browser (or not!), and so this module can’t do anything to help support browsers that don’t support them natively.

By: Michael Sheakoski

Michael Sheakoski — Wed, 07 Jul 2010 01:36:16 +0000

To clarify, are you using the same conventions in Y64 as Base64 for URL? It translates "+" => "-" but this post suggests that Y64 is translating "+" => ".". Also, Base64 for URL omits "=" for padding.

By: Sause

Sause — Tue, 06 Jul 2010 21:44:31 +0000

The article mentions that you can use a data URI to embed files inside of the HTML document. Does this module support that functionality (across A-grade browsers)?

By: Preston L. Bannister

Preston L. Bannister — Tue, 06 Jul 2010 19:09:44 +0000

You are using a switch per character … which is fairly horrible. I wrote and posted an example a few years back:

Simple Base64 encode/decode – Javascript

Note that with a small tweak to the anonymous constructor function, you could generate an equally efficient Y64 functions.

Feel free to reuse whatever you want.