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Warn user before leaving web page with unsaved changes
...se;
var setFormSubmitting = function() { formSubmitting = true; };
window.onload = function() {
window.addEventListener("beforeunload", function (e) {
if (formSubmitting) {
return undefined;
}
var confirmationMessage = 'It looks like you have been editing so...
How to show Page Loading div until the page has finished loading?
...
window.onload = function(){ document.getElementById("loading").style.display = "none" }
#loading {width: 100%;height: 100%;top: 0px;left: 0px;position: fixed;display: block; z-index: 99}
#loading-image {position: absolute;top: 4...
Application_Error not firing when customerrors = “On”
...
<script type="text/C#" runat="server">
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
Response.StatusCode = (int) System.Net.HttpStatusCode.InternalServerError;
}
</script>
This block tells the page to be served with the correct status code....
Can you autoplay HTML5 videos on the iPad?
...g. a click event).
Basically, a user-initiated play button works, but
an onLoad="play()" event does not.
For example, this would play the movie:
<input type="button" value="Play" onclick="document.myMovie.play()">
Whereas the following would do nothing on iOS:
<body onload="documen...
How can I mock dependencies for unit testing in RequireJS?
...18n = stubs.i18n;
stubs.i18n = {
load: sinon.spy(function(name, req, onLoad) {
onLoad(i18n);
})
};
_.each(stubs, function(value, key) {
var stubName = 'stub' + key + cnt;
map[key] = stubName;
define(stubName, function() {
return value;
});
});
return...
Using PUT method in HTML form
...
xhr.setRequestHeader( "Content-Type", "application/json" );
xhr.onload = () => {
if ( xhr.status === 200 ) {
// reload() uses cache, reload( true ) force no-cache. I reload the page to make "redirects normal effect" of HTML form when submit. You can manipulate DOM instead...
How to get and set the current web page scroll position?
...in hidden variables. Then in the html of the refreshed page I use <body onLoad="window.scrollTo(x,y), where x and y are those from the hidden values values!
– xyz
Nov 4 '10 at 14:32
...
Drawing an SVG file on a HTML5 canvas
...ks with some bugs (but nightly has fixed them).
var img = new Image();
img.onload = function() {
ctx.drawImage(img, 0, 0);
}
img.src = "http://upload.wikimedia.org/wikipedia/commons/d/d2/Svg_example_square.svg";
Live example here. You should see a green square in the canvas. The second green sq...
How can I tell if a DOM element is visible in the current viewport?
...onDOMContentLoaded', handler); // Internet Explorer 9+ :(
attachEvent('onload', handler);
attachEvent('onscroll', handler);
attachEvent('onresize', handler);
}
*/
If you do any DOM modifications, they can change your element's visibility of course.
Guidelines and common pitfalls:
M...
how to stop browser back button using javascript
...) {
global.location.hash = _hash;
}
};
global.onload = function () {
noBackPlease();
// disables backspace on page except on input fields and textarea..
document.body.onkeydown = function (e) {
var elm = e.target.nodeName....