Converting a BlobBuilder to string, in HTML5 Javascript

Question

          function blobToString(blob) {
             var reader = new FileReader();
             var d = "";
             reader.onloadend = function() {
                 d.callback(reader.result); 
                 console.log(reader.result);
             };
             reader.readAsText(blob);  
             return d;
         };

The above code does not work, but I guess my intentions are clear, I want to convert some binary data(WebKitBlobBuilder) to a string. Also the "console.log(reader.result);" doesn't display anything.

How are you calling blobToString?

Digital Plane
– Digital Plane

2011-07-31 04:46:16 +00:00
Commented Jul 31, 2011 at 4:46 — Digital Plane
– Digital Plane, Commented Jul 31, 2011 at 4:46

Jonathan R. Wallace · Accepted Answer · 2012-10-15 01:25:08Z

2

Check out http://blog.ericzhang.com/state-of-binary-in-the-browser/ and his binary.js project.

answered Oct 15, 2012 at 1:25

Jonathan R. Wallace

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1 Comment

Henley Wing Chiu Over a year ago

These links as answers are rarely useful. This one especially isn't - too much text to read on that page. Which section is applicable?

Evren Bingøl · Accepted Answer · 2013-05-02 20:01:55Z

0

it should not be reader.onloadend but rather reader.onloaded

or try

reader.onload = function (e) {
e.target.result -> this is the data. 
}

answered May 2, 2013 at 20:01

Evren Bingøl

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