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ArrayBuffer to base64 encoded string
...application/octet-binary'});
var reader = new FileReader();
reader.onload = function(evt){
var dataurl = evt.target.result;
callback(dataurl.substr(dataurl.indexOf(',')+1));
};
reader.readAsDataURL(blob);
}
//example:
var buf = new Uint8Array([11,22,33]);
arrayBuffer...
Uint8Array to string in Javascript
...ve some UTF-8 encoded data living in a range of Uint8Array elements in Javascript. Is there an efficient way to decode these out to a regular javascript string (I believe Javascript uses 16 bit Unicode)? I dont want to add one character at the time as the string concaternation would become to CPU in...
Draw on HTML5 Canvas using a mouse
...
Here is a working sample.
<html>
<script type="text/javascript">
var canvas, ctx, flag = false,
prevX = 0,
currX = 0,
prevY = 0,
currY = 0,
dot_flag = false;
var x = "black",
y = 2;
...
Binding multiple events to a listener (without JQuery)?
...
I have a simpler solution for you:
window.onload = window.onresize = (event) => {
//Your Code Here
}
I've tested this an it works great, on the plus side it's compact and uncomplicated like the other examples here.
...
How to Copy Contents of One Canvas to Another Canvas Locally
...Context('2d');
var destinationImage = new Image;
destinationImage.onload = function(){
destCanvasContext.drawImage(destinationImage,0,0);
};
destinationImage.src = sourceImageData;
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Convert base64 string to ArrayBuffer
...r to blob:" + blob)
var fileReader = new FileReader();
fileReader.onload = function() {
var dataUrl = fileReader.result;
console.log("blob to dataUrl: " + dataUrl);
var base64 = dataUrl.substr(dataUrl.indexOf(',')+1)
console.log("dataUrl to base64: " + base64)...
Can you have multiple $(document).ready(function(){ … }); sections?
...all
so that's another reason you don't wanna do that.
With the old window.onload though you will replace the old one every time you specified a function.
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HTML5: Slider with two inputs possible?
...uislider.min.css" rel="stylesheet">
<!-- In <body> -->
<script src="nouislider.min.js"></script>
Example usage: Creates a slider which goes from 0 to 100, and starts set to 20-80.
HTML:
<div id="slider">
</div>
JS:
var slider = document.getElementById('...
Load a WPF BitmapImage from a System.Drawing.Bitmap
...age.StreamSource = memory;
bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
bitmapImage.EndInit();
}
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Catch browser's “zoom” event in JavaScript
Is it possible to detect, using JavaScript, when the user changes the zoom in a page?
I simply want to catch a "zoom" event and respond to it (similar to window.onresize event).
...