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what's the meaning of '=?' in angularJS directive isolate scope declaration?

..._EXPRESSION exception. You can avoid this behavior using =? or =?attr in order to flag the property as optional. It should trigger the expected error on every digest that affects the scope property: parentSet = parentGet.assign || function() { // reset the change, or we will throw this exceptio...
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Is there a way to make text unselectable on an HTML page? [duplicate]

... According to this Answer, the order of those two webkit settings may be critical, where the -webkit-user-select: should come before the -webkit-touch-callout:. I have not verified this. – Basil Bourque Nov 15 '14 at ...
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How to get C# Enum description from value? [duplicate]

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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How to calculate the angle between a line and the horizontal axis?

...e will give 45.0 degrees for the example shown, which is wrong. Change the order of the deltaY calculation and it works properly. share | improve this answer | follow ...
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Receiving login prompt using integrated windows authentication

... Windows 10 (1803 and later?) also require this configuration setting in order to authenticate locally. This one took me awhile because everyone else's comments here failed to help me. I found this article and it fixed it! ...
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What is the difference between int, Int16, Int32 and Int64?

...n int16 takes as much space as an int32 (and actually an int64) because in order for most operations to be efficient, we pad around the data to make accesses aligned to 32 or 64 bit boundaries (in 32 or 64 bit modes respectively). This is because unaligned accesses are ridiculously inefficient on so...
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The maximum value for an int type in Go

...s additional math and bounds-checking to be performed by the processor, in order to emulate the larger or smaller integer. With that in mind, be aware that the performance of the processor (or compiler's optimised code) is almost always going to be better than adding your own bounds-checking code, s...
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What is so bad about singletons? [closed]

...it to testing since you can end up with a situation where tests need to be ordered which is a big no no for unit tests. Why? Because each unit test should be independent from the other. share | imp...
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How do you reverse a string in place in C or C++?

... XOR swapping is slower than swapping via register on modern out-of-order processors. – Patrick Schlüter Aug 15 '11 at 17:42  |  show ...
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Git in Visual Studio - add existing project?

...nally figured out the answer that took far longer than it should have. In order to take an existing project without source control and put it to an existing EMPTY (this is important) GitHub repository, the process is simple, but tricky, because your first inclination is to use the Team Explorer, wh...