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What are these attributes: `aria-labelledby` and `aria-hidden`
...ributes are called as ARIA attribute states and model
aria-labelledby: Identifies the element (or elements) that labels the current element.
aria-hidden (state): Indicates that the element and all of its descendants are not visible or perceivable to any user as implemented
by the author....
How to create GUID / UUID?
I'm trying to create globally-unique identifiers in JavaScript. I'm not sure what routines are available on all browsers, how "random" and seeded the built-in random number generator is, etc.
...
jQuery .ready in a dynamically inserted iframe
...nction callIframe(url, callback) {
$(document.body).append('<IFRAME id="myId" ...>');
$('iframe#myId').attr('src', url);
$('iframe#myId').load(function() {
callback(this);
});
}
In dealing with iframes I found good enough to use load event instead of document ready e...
Use a normal link to submit a form
...this without some form of scripting to the best of my knowledge.
<form id="my_form">
<!-- Your Form -->
<a href="javascript:{}" onclick="document.getElementById('my_form').submit(); return false;">submit</a>
</form>
Example from Here.
...
How to pass event as argument to an inline event handler in JavaScript?
...
to pass the event object:
<p id="p" onclick="doSomething(event)">
to get the clicked child element (should be used with event parameter:
function doSomething(e) {
e = e || window.event;
var target = e.target || e.srcElement;
console.log...
Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
...There is no such method that just update a "part of the screen" since Android OS is redrawing every pixel when updating the screen. But, when you're not clearing old drawings on your Canvas, the old drawings are still on the surface and that is probably one way to "update just a part" of the screen....
Rendering JSON in controller
...r application as a Single Page Application (SPA) and you need your client-side JavaScript to be able to pull in additional data without fully reloading the page.
or
B) You are building an API that third parties will be consuming and you have decided to use JSON to serialize your data.
Or, possibl...
Best way to implement keyboard shortcuts in a Windows Forms application?
...
You probably forgot to set the form's KeyPreview property to True. Overriding the ProcessCmdKey() method is the generic solution:
protected override bool ProcessCmdKey(ref Message msg, Keys keyData) {
if (keyData == (Keys.Control | Keys.F)) {
MessageBox.Show("What the Ctrl+F?");
return...
Quick way to list all files in Amazon S3 bucket?
... If you get: boto.exception.S3ResponseError: S3ResponseError: 403 Forbidden Make sure the user policy for the Access/Secret key has access to the S3.
– topherjaynes
May 27 '14 at 23:44
...
Why is using onClick() in HTML a bad practice?
...e, because it's not good for semantics. I would like to know what the downsides are and how to fix the following code?
10 A...