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Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
... depends on the case. Let's try to trace some common behavior again:
img.onload may be called sometime in the future, when (and if) the image has successfully loaded.
setTimeout may be called sometime in the future, after the delay has expired and the timeout hasn't been canceled by clearTimeout. ...
How can I make a WPF combo box have the width of its widest element in XAML?
... {
base.OnAttached();
AssociatedObject.Loaded += OnLoaded;
}
protected override void OnDetaching()
{
base.OnDetaching();
AssociatedObject.Loaded -= OnLoaded;
}
private void OnLoaded(object sender, RoutedEvent...
Can you determine if Chrome is in incognito mode via a script?
...
In main.html add an iframe,
<iframe id='testFrame' name='testFrame' onload='setUniqueSource(this)' src='' style="width:0; height:0; visibility:hidden;"></iframe>
, and some JavaScript code:
function checkResult() {
var a = frames[0].document.getElementById('test');
if (!a) ret...
How do I load an HTML page in a using JavaScript?
...sing this, make sure that the functions are written outside of the "window.onload" function.
– Winter Cara
Jun 3 at 12:13
add a comment
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...
Send POST data using XMLHttpRequest
...setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xhr.onload = function () {
// do something to response
console.log(this.responseText);
};
xhr.send('user=person&pwd=password&organization=place&requiredkey=key');
Or if you can count on browser support you c...
Convert SVG to image (JPEG, PNG, etc.) in the browser
...g+xml;charset=utf-8"});
var url = DOMURL.createObjectURL(svgBlob);
img.onload = function () {
ctx.drawImage(img, 0, 0);
DOMURL.revokeObjectURL(url);
if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob)
{
var blob = canvas.msToBlob();
...
How can I detect whether an iframe is loaded?
...rame>
jsfiddle DEMO.
Update: Using plain javascript
window.onload=function(){
var ifr=document.getElementById('MainPopupIframe');
ifr.onload=function(){
this.style.display='block';
console.log('laod the iframe')
};
var btn=document.getElementById...
download file using an ajax request
...req.open("GET", urlToSend, true);
req.responseType = "blob";
req.onload = function (event) {
var blob = req.response;
var fileName = req.getResponseHeader("fileName") //if you have the fileName header available
var link=document.createElement('a');
link....
Make WPF window draggable, no matter what element is clicked
...is using a delegate to trigger the DragMove() method on either the windows onload event or the grid load event
private void Grid_Loaded(object sender, RoutedEventArgs
{
this.MouseDown += delegate{DragMove();};
}
sha...
drag drop files into standard html file input
...agType').value = files[i].type
reader = new FileReader();
reader.onload = function(event) {
document.getElementById('fileDragData').value = event.target.result;}
reader.readAsDataURL(files[i]);
}
}
var holder = document.getElementById('holder');
holder.ondragover = functi...