I have this content script that downloads some binary data using XHR, which is sent later to the background script:  var self = this; var xhr = new XMLHttpRequest(); xhr.open('GET', url); xhr.responseType = 'arraybuffer'; xhr.onload =...
JavaScript typed arrays, implemented in Firefox 4 and Chrome 7, are a very efficient way of storing and working with binary data in JavaScript. However, the current implementations only provide integer views up to 32 bits per member, with Int32Array...
I've been playing around with Typed Arrays in JavaScript.  var buffer = new ArrayBuffer(16); var int32View = new Int32Array(buffer);   I imagine normal arrays ([1, 257, true]) in JavaScript have poor performance because their values could be of a...
I am trying to pass an Int8Array, which is created from an array buffer to a java method via DWR, which accepts it as a byte[] parameter.  Javascript :     uploadFiles: function(eve) {         var fileContent = null;          for(var i = 0; i < th...
I'm a bit confused with Javascript Typed Arrays.  What I have are several Float32Array s, that have no concat method. I don't know how many are them in advance, btw. I'd like to concatenate them all inside another Float32Array, but:   as...
I've come across a problem in that I don't see a way to easily convert strings to typed arrays, and converting from typed arrays to strings appears to be a real pain requiring a manual char code conversion for every byte. Is there any better...
I have been messing with Canvas a lot lately, developing some ideas I have for a web-based game. As such I've recently run into Javascript Typed Arrays. I've done some reading for example at MDN and I just can't understand anything I'...
I'm trying to use WebGL and would like to mix some different types into one buffer of bytes. I understand TypedArrays serve this purpose but it's not clear if I can mix types with them (OpenGL vertex data is often floats mixed with unsigned b...
Is there a way how to test if two JavaScript ArrayBuffers are equal? I would like to write test for message composing method. The only way I found is to convert the ArrayBuffer to string and then compare. Did I miss something?  Following code is givi...
I'm doing some bitwise manipulation in a project and I wonder if the built-in typed arrays might save me some headache and maybe even give me a bit of a performance gain.  let bytes = [128, 129, 130, 131] let uint32 = (bytes[0] << 24) | (by...

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