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How to programmatically get iOS status bar height
...upported upside-down > left) for which it didn't work (switched height & width).
BOOL isPortrait = self.interfaceOrientation == UIInterfaceOrientationPortrait;
CGSize statusBarSize = [UIApplication sharedApplication].statusBarFrame.size;
CGFloat statusBarHeight = (isPortrait ? statusBarSize....
How to find gaps in sequential numbering in mysql?
...". $MAX ." WHERE seq not in (SELECT column FROM table)" my syntax is php based
– me_
Oct 24 '17 at 23:57
...
Can someone explain the “debounce” function in Javascript
...y from the code in the link. In the link, there is a check for (immediate && !timeout) BEFORE creating a new timout. Having it after causes immediate mode to never fire. I have updated my answer to annotate the working version from the link.
function debounce(func, wait, immediate) {
...
How to override equals method in Java
... can cast it to People safely
return this.name.equals(thatPeople.name) && this.age == thatPeople.age;// if they have the same name and same age, then the 2 objects are equal unless they're pointing to different memory adresses
}
...
What is a “web service” in plain English?
... programs over the web (HTTP).
For example, when you create a website in PHP that outputs HTML, its target is the browser and by extension the human reading the page in the browser. A web service is not targeted at humans but rather at other programs.
So your PHP site that generates a random inte...
What are the mechanics of short string optimization in libc++?
...ol __is_long() const _NOEXCEPT
{ return bool(__r_.first().__s.__size_ & __short_mask); }
// __r_.first() -> __rep const&
// .__s -> __short const&
// .__size_ -> unsigned char
To be honest, I am not too sure this is Standard C++ (I know the initial subsequence...
Determine what attributes were changed in Rails after_save callback?
...on_after_change
Notification.send(…) if (saved_change_to_published? && self.published == true)
end
end
Or if you prefer, saved_change_to_attribute?(:published).
Rails 3–5.1
Warning
This approach works through Rails 5.1 (but is deprecated in 5.1 and has breaking changes...
How can I check if an ip is in a network in Python?
...vert a network address to a long integer"
return dottedQuadToNum(ip) & makeMask(bits)
def addressInNetwork(ip,net):
"Is an address in a network"
return ip & net == net
address = dottedQuadToNum("192.168.1.1")
networka = networkMask("10.0.0.0",24)
networkb = networkMask("192.168....
How are the points in CSS specificity calculated
...on.
I can't tell for sure - all the articles I manage to find avoid the example of multiple classes, e.g. here - but I assume that when it comes to comparing the specifity between a class selector and an ID, the class gets calculated with a value of 15 only, no matter how detailed it is.
That matc...
What are queues in jQuery?
... +1. I'm working on a jQuery-based user script that needs to connect to a PHP script as if it were another PHP script running on the client -- one HTTP request/other operation at a time, so this will definitely be helpful. Just a question: jQuery requires that queues be attached to objects, right? ...