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Is there any way of reading the contents of a HTML Canvas as binary data?  At the moment I've got the following HTML to show an input file and the canvas below it:  <p><button id="myButton" type="button">Get Image Co...

var profileImage = fileInputInByteArray;  $.ajax({   url: 'abc.com/',   type: 'POST',   dataType: 'json',   data: {      // Other data      ProfileImage: profileimage      // Other data   },   success: {   } })  // Code in...

I require to generate a thumbnail of an image in my Web Application. I make use of the Html 5 File API to generate the thumbnail.   I made use of the examples from the below URL to generate the thumbnails.  http://www.html5rocks.com/en/tutorials/fi...

I need to add a UTF-8 byte-order-mark to generated text data on client side. How do I do that?  Using new Blob(['\xEF\xBB\xBF' + content]) yields '"my data"',  of course.  Neither did '\uBBEF\x22BF' work (with...

I have two base64 encoded in PNG, and I need to compare them using Resemble.JS  I think that the best way to do it is to convert the PNG's into file objects using fileReader. How can I do it?...

I'm trying to upload large files (at least 500MB, preferably up to a few GB) using the WebSocket API. The problem is that I can't figure out how to write "send this slice of the file, release the resources used then repeat". I was hop...

I am working on an web site which will be packed in an .exe file. So the site will only be used offline. Now i need to parse an local xml document. How can i get the file handle to a local file using html5 file api?  EDIT: I dont want to use <inpu...

I'm in need of some javascript guru. I have this code:  handleImage(new File([blob], blob.name, {type: blob.type})).done(/* something */)   and   handleImage = function (image) {         // create some fake form data         var formData = new Fo...

When readAsText() function is completed the result is stored in .result  How do I see if the content of the file read are correct in .result?    fr = new FileReader();  fr.readAsText(file);  var x = fr.result;  console.log(x); //does not display anyt...