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Re: Base64 encode using using windows-1250 encoding

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Jupi <nomail@gmail.com> wrote on 09 Jun 2018 in comp.lang.javascript:

> Thomas 'PointedEars' Lahn expressed precisely :
>> Jupi wrote:
>> ^^^^
>> Your real name belongs there.
> 
> Mr. Jupi Krem
> 
>>> I need to encode string using Central European Windows-1250 encoding.
>>
>> Why?
> 
> Because I need it.
> 
>>> I know how to use simple base64 but it is utf-8 encoded and I need
>>> windows-1250.
>>
>> Base64 is a transfer encoding.  UTF-8 and Windows-1250 are character 
>> encodings.  They have nothing to do with each other.
>>
>> One uses character encodings to encode code points of characters of 
>> character sets.
>>
>> One uses a transfer encoding to transfer (character) codes that cannot be 
>> handled verbatim by a protocol or network connection.
>>
>> <https://en.wikipedia.org/wiki/Base64>
> 
> I do not understand all this. I just need to encode some string which 
> contains Easteuropean characters to base64 string. Curently, when I 
> encode string, it is encoded using utf-8.
> Thank you.

IMHO:

base64 translates ["encodes"] any string
into a human-readable string.

It should[!] not matter what is in the input string,
or what encoding is used.

=======================

<script type='text/javascript'> 
'use strict';

// Define the string
let str = 'Hello World!';

// Encode the String
let encodedString = btoa(str);
console.log(encodedString); // Outputs: "SGVsbG8gV29ybGQh"

// Decode the String
let decodedString = atob(encodedString);
console.log(decodedString); // Outputs: "Hello World!"

</script>

However please read these first:

<https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64
_encoding_and_decoding#The_Unicode_Problem>

<https://stackoverflow.com/questions/30106476/using-javascripts-atob-to-
decode-base64-doesnt-properly-decode-utf-8-strings>

https://caniuse.com/#search=btoa

https://caniuse.com/#search=atob




-- 
Evertjan.
The Netherlands.
(Please change the x'es to dots in my emailaddress)

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Thread

Base64 encode using using windows-1250 encoding Jupi <nomail@gmail.com> - 2018-06-08 16:21 +0200
  Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-08 20:26 +0200
    Re: Base64 encode using using windows-1250 encoding Jupi <nomail@gmail.com> - 2018-06-08 22:09 +0200
      Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-08 22:57 +0200
    Re: Base64 encode using using windows-1250 encoding Jupi <nomail@gmail.com> - 2018-06-09 07:02 +0200
      Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-09 09:25 +0200
        Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 09:52 +0200
          Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-09 10:12 +0200
            Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 10:25 +0200
        Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-09 09:53 +0200
          Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 10:01 +0200
            Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-09 10:17 +0200
              Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 10:32 +0200
          Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 10:02 +0200
            Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-09 10:20 +0200
              Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 10:29 +0200
                Re: Base64 encode using using windows-1250 encoding Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-09 12:07 +0200
      Re: Base64 encode using using windows-1250 encoding "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-06-09 09:30 +0200
        Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 09:55 +0200
          Re: Base64 encode using using windows-1250 encoding "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-06-09 13:11 +0200
        Re: Base64 encode using using windows-1250 encoding Frank Kozuschnik <franko@nurfuerspam.de> - 2018-06-09 12:45 +0200
          Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 13:13 +0200
            Re: Base64 encode using using windows-1250 encoding Mickey Finn <mfinn@gmail.com> - 2018-06-14 19:22 -0300
  Re: Base64 encode using using windows-1250 encoding "Christoph M. Becker" <cmbecker69@arcor.de> - 2018-06-09 12:30 +0200
    Re: Base64 encode using using windows-1250 encoding Jupi Krem <nomail@gmail.com> - 2018-06-09 13:14 +0200
    Re: Base64 encode using using windows-1250 encoding Yappi <nomail@gmail.com> - 2018-06-09 13:33 +0200

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