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How to calculate md5 hash of a file using javascript
... = event.dataTransfer.files[0];
var reader = new FileReader();
reader.onload = function(event) {
var binary = event.target.result;
var md5 = CryptoJS.MD5(binary).toString();
console.log(md5);
};
reader.readAsBinaryString(file);
};
I recommend to add some CSS to see the Drag &...
How can I use jQuery in Greasemonkey scripts in Google Chrome?
...the page and you should see a border around my post.
Functions
load(url, onLoad, onError)
Loads the script at url into the document. Optionally, callbacks may be provided for onLoad and onError.
execute(functionOrCode)
Inserts a function or string of code into the document and executes it. The ...
Check if image exists on server using JavaScript?
...ction checkImage(imageSrc, good, bad) {
var img = new Image();
img.onload = good;
img.onerror = bad;
img.src = imageSrc;
}
checkImage("foo.gif", function(){ alert("good"); }, function(){ alert("bad"); } );
JSFiddle
...
Disable pasting text into HTML form
...reas in browsers that don't
// natively support it.
(function () {
var onload = window.onload;
window.onload = function () {
if (typeof onload == "function") {
onload.apply(this, arguments);
}
var fields = [];
var inputs = document.getElementsByT...
JavaScript global event mechanism
...tpRequest');
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.onload = function() {
if (xhr.status === 200) {
console.log('JS error logged');
} else if (xhr.status !== 200) {
console.error('Failed to log JS error.');
console.error(xhr);
console.er...
Get data from file input in JQuery
...r file = input.files[0];
var fr = new FileReader();
fr.onload = receivedText;
//fr.readAsText(file);
//fr.readAsBinaryString(file); //as bit work with base64 for example upload to server
fr.readAsDataURL(file);
}
}
function...
Why isn't my JavaScript working in JSFiddle?
... The reason it didn't work initially is that test was defined inside of an onLoad function; using window.test = function(){/*...*/} makes it work perfectly well.
– ellisbben
Sep 2 '11 at 15:18
...
How to display loading message when an iFrame is loading?
...
With the iframe onload function you can remove the CSS background image.
– Hugo Cox
Oct 20 '17 at 0:09
1
...
JS - get image width and height from the base64 code
...
var i = new Image();
i.onload = function(){
alert( i.width+", "+i.height );
};
i.src = imageData;
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Can scripts be inserted with innerHTML?
...cript-it-too
So use this instead of script tags:
<img src="empty.gif" onload="alert('test');this.parentNode.removeChild(this);" />
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follo...