base64 encode/decode: btoa() and nodejs Buffer work different way?

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•

Gordon
The problem is actually with your node.js code :) If you look at what's in your buffer:
```
> var s = String.fromCharCode(0x00,0x2B,0x20,0xFC);
undefined
> var b = new Buffer(s);
undefined
> b
<Buffer 00 2b 20 c3 bc>
> b.length
5
```
You'll see that it's magically turned the string into a 5 byte buffer. Most likely it's because it is interpreting your string as a UTF8 string, when I guess you intended to use it just as a string of bytes.

•

Aifer in reply to @Gordon

Yes.
Just use 'ascii' to set the encoding format.

Thanks a lot.

> var s = String.fromCharCode(0x00,0x2B,0x20,0xFC);
undefined
> var b = new Buffer(s,'ascii');
undefined
> b
<Buffer 00 2b 20 fc>
> b.length
4
> b.toString('base64');
'ACsg/A=='

base64 encode/decode: btoa() and nodejs Buffer work different way?

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