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Preloading images with JavaScript
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there's no onload handler for any of the images
– Benny
Jul 27 '15 at 18:22
14
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Get image data url in JavaScript?
...= new Image();
img.setAttribute('crossOrigin', 'anonymous');
img.onload = function () {
var canvas = document.createElement("canvas");
canvas.width =this.width;
canvas.height =this.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(this, 0, 0)...
Cannot set property 'innerHTML' of null
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If you use window.onload = function name(){} it doesn't matter if the div is before or after.
– Colyn1337
Aug 15 '13 at 14:05
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Checking if jquery is loaded using Javascript
...ame $() syntax.
Remove your $(document).ready() (use something like window.onload instead):
window.onload = function() {
if (window.jQuery) {
// jQuery is loaded
alert("Yeah!");
} else {
// jQuery is not loaded
alert("Doesn't Work");
}
}
...
How to detect idle time in JavaScript elegantly?
...a JavaScript:
var inactivityTime = function () {
var time;
window.onload = resetTimer;
// DOM Events
document.onmousemove = resetTimer;
document.onkeypress = resetTimer;
function logout() {
alert("You are now logged out.")
//location.href = 'logout.html'
...
Resizing an iframe based on content
...ent. To do this, framed.html has an iframe with src='' specified. When its onload fires, it evaluates its own height, and sets the src of the iframe at this point to helper.html?height=N
There's an explanation here of how facebook handle it, which may be slightly clearer than mine above!
Code
In...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...ctx.restore();
If you need img to be loaded:
var img = new Image();
img.onload = function() {
ctx.save();
ctx.globalAlpha = 0.4;
ctx.drawImage(img, x, y);
ctx.restore()
};
img.src = "http://...";
Notes:
Set the 'src' last, to guarantee that your onload handler is called on all...
How to align center the text in html table row?
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John Parker
51.5k1111 gold badges120120 silver badges124124 bronze badges
answered Jun 15 '13 at 19:18
RemiRemi
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Passing data to a bootstrap modal
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answered May 17 '12 at 12:20
mg1075mg1075
16.8k88 gold badges5454 silver badges9595 bronze badges
...
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 &...