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Custom exception type
...eption();
}
catch (e) {
if (e instanceof NotNumberException) {
alert("not a number");
}
else
if (e instanceof NotPositiveNumberException) {
alert("not a positive number");
}
}
There is another syntax for catching a typed exception, although this won't work in ev...
Detect permission of camera in iOS
... the requestAccess method will not work. You will have to manually show an alert to ask the user to go to settings and grant permissions.
– Abdullah Umer
Apr 7 '19 at 14:15
ad...
Ask for User Permission to Receive UILocalNotifications in iOS 8
...sterUserNotificationSettings(UIUserNotificationSettings(forTypes:[.Sound, .Alert, .Badge], categories: nil))
}
else
{
//do iOS 7 stuff, which is pretty much nothing for local notifications.
}
return true
}
Swift 3.2
if(UIApplication.instancesRespond(to: #selector(UIAppl...
Using jQuery how to get click coordinates on the target element
... (e) {
$('#A').click(function (e) { //Default mouse Position
alert(e.pageX + ' , ' + e.pageY);
});
$('#B').click(function (e) { //Offset mouse Position
var posX = $(this).offset().left,
posY = $(this).offset().top;
alert((e.pageX - posX) + ' , ' + (...
Why does JQuery have dollar signs everywhere?
... Unless you are using another language like PHP to populate javascript in your site using HTMLdocs, at which point that dollar sign serves the additional purpose of breaking everything since PHP does use the dollar sign to start all variables. (A reason that if you're sharing jQuery scrip...
Received fatal alert: handshake_failure through SSLHandshakeException
...
@Brig But not as an alert, which is what this answer says, and what the question is about.
– Marquis of Lorne
Jun 15 '16 at 23:43
...
Early exit from function?
...
@dbme: Functions in JavaScript always return. The return statement is implicit if it hasn't been provided. The default return value is undefined, and that's what my primary solution provides. The article you referenced is talking about doing return ...
Can we append to a {% block %} rather than overwrite?
In my core.html I have a block labeled javascript. It would be great if I can append more lines to this block without overwriting everything in it.
...
Detect when an image fails to load in Javascript
....onerror=imageNotFound;
tester.src=URL;
}
function imageFound() {
alert('That image is found and loaded');
}
function imageNotFound() {
alert('That image was not found.');
}
testImage("http://foo.com/bar.jpg");
And my sympathies for the jQuery-resistant boss!
...
How can I change the current URL?
I have the following code that changes the pages from within JavaScript:
5 Answers
5
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