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Draw on HTML5 Canvas using a mouse
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I changed canvas.offsetLeft; and canvas.offsetTop; with canvas.getBoundingClientRect().left; and canvas.getBoundingClientRect().top; respectively to fix the scrolling problem.
– KWILLIAMS
Nov 15 '17 at 19:27
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Combine multiple Collections into a single logical Collection?
...terate over all elements (ideally, read only).
I'm using guava collections and I wonder how I could use guava iterables/iterators to generate a logical view on the internal collections without making temporary copies.
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What is sr-only in Bootstrap 3?
... @Christophe I would still recommend that article for understanding the concept. Even though it doesn't explain the problems with rtl content it does list different techniques which also includes clipping
– katranci
Jan 20 '14 at 12:02
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Get the current displaying UIViewController on the screen in AppDelegate.m
...ew does not belong to the root view controller (in the case of modal views and such).
– Dima
Jul 24 '12 at 19:17
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How can I remove a flag in C?
There is a variable that holds some flags and I want to remove one of them. But I don't know how to remove it.
3 Answers
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How to write DataFrame to postgres table?
There is DataFrame.to_sql method, but it works only for mysql, sqlite and oracle databases. I cant pass to this method postgres connection or sqlalchemy engine.
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How to implement classic sorting algorithms in modern C++?
The std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort....
Class constants in python
...ternatively, you could create intermediate classes: HugeAnimal, BigAnimal, and so on. That would be especially helpful if each animal class will contain different logic.
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Google Play Services Library update and missing symbol @integer/google_play_services_version
...eased on Halloween 2013 ), you are now supposed to add a new tag into the AndroidManifest.xml file.
26 Answers
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Imitate Facebook hide/show expanding/contracting Navigation Bar
...wing property:
@property (nonatomic) CGFloat previousScrollViewYOffset;
And here are the UIScrollViewDelegate methods:
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
CGRect frame = self.navigationController.navigationBar.frame;
CGFloat size = frame.size.height - 21;
CGFloat...