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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: How to load binary image with Javascript with NO BASE64 conversion
Date: Tue, 29 Jul 2014 13:51:13 +0200
Organization: PointedEars Software (PES)
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Thomas 'PointedEars' Lahn wrote:

> Erwin Moller wrote:
>> On 7/27/2014 11:03 AM, Richard Maher wrote:
>>> On 7/27/2014 3:44 PM, Evertjan. wrote:
>>>> What is btoa(), surely not native JS?
> 
> btoa() (presumably, “*b*inary *to* ‘a’-for-character”) is a method of the
> host object referred to by the host-defined “window” property of the
> ECMAScript global object, originating from DOM Level 0, for base64
> encoding; it takes a String value (object or primitive) and returns a
> primitive string value.  window.atob() is its decoding counterpart.  For
> historical reasons, it is available at least in Gecko-based and WebKit-
> based browsers (I have not tested others yet).
> 
> […]
> 
> <https://developer.mozilla.org/en-US/docs/Web/API/Window.btoa>

It turned out that, at least in Google V8 JavaScript in Chromium 34, btoa() 
and atob() are properties of the global object as well, so I will add 
testcases to the ES Matrix.  It would be good to know that the major 
ECMAScript implementations include a base64 encoder/decoder.

-- 
PointedEars
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